心內腫瘤或球狀樣瓣膜血栓可間歇性阻斷心內血流, 引起暈厥先兆或暈厥.用英語怎么說？

心內腫瘤或球狀樣瓣膜血栓可間歇性阻斷心內血流, 引起暈厥先兆或暈厥.

Intracardiac tumors or ball - valve thrombi can intermittently obstruct blood flow heart, producing presyncope or syncope.

intracardiac

adj. 心臟內的；

例句
Methods : Using pre - warning intervention in 736 patients who have accepted the intracardiac surgery under extracorporeal circulation.
方法對736例實施體外循環心臟直視手術患者行壓瘡預警干預程序.

tumors

adj. 心臟內的；

例句
These tumors are biologically benign and are treated by curettage or resection.
生物學上這些腫瘤為良性且可通過刮除術或切除術治愈.

or

conj. 或，或者，還是，不然，否則，左右；prep. <古、詩>在…之前，比…更早；n. [紋章]黑金色、黑色；

例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我們不敢放縱自己的情感，以免顯得太過軟弱或缺乏自制。

ball

n. 球，棒球（投手投出的）壞球，拇指球，舞會；vt. 做成球狀，使成團塊，（指男性）和（女性）交媾（美式英語）；vi. 呈球形，成團塊，[美國俚語、口語]狂歡作樂，消遣，盡情作樂，盡情地玩；

例句
The ball hit him in the most sensitive part of his anatomy.
球擊中了他身上最敏感的部位。

valve

n. 閥，真空管，（管樂器的）活栓，（心臟的）瓣膜；vt. 裝閥于，以活門調節；

例句
One of the long-lasting effects of the infection is damage to a valve in the heart...
感染的其中一個長期后果是使心臟瓣膜受損。

can

aux. 能夠，可以，有機會；n. 金屬罐，一聽，金屬容器；vt. 將…裝罐保存，炒…魷

例句
When I listen to her play I can hear a new Nigel Kennedy.
從她的演奏中我聽出了新一代的奈杰爾·肯尼迪。

intermittently

adv. 間歇地，斷斷續續；

例句
Seams in the anorthosite series are only intermittently exposed.
斜長巖組中的礦層僅斷續出露.

obstruct

vt. 阻塞，堵塞，阻礙，阻止；vi. 阻塞，妨礙，（給…）設置障礙；

例句
The defences are intended to obstruct any advance by tanks and other vehicles.
這些防御工事用于阻止坦克等車輛前進。

blood

n. 血，血液，流血，殺戮，殺人（罪），犧牲，有…類型的血的，血統，血氣，氣質；vt. 用血染（皮革等），用血弄濕，使出血，抽…的血，讓新人初試做某事，使先取得經

例句
He was admitted yesterday for treatment of blood clots in his lungs.
他昨天入院治療肺部的血塊。

flow

vi. 流，垂，流出，（談話、文體等）流暢；n. 流動，滔滔不絕，漲潮，連貫；vt. 使泛濫，淹沒，排出；

例句
The flow of current actuates the signal.
電流發出了信號。

heart

n. 心，心臟，感情，要點，胸部；vt. 鼓勵，激勵；vi. 結心；

例句
...abnormal heart rhythms and high anxiety levels.
心律不齊和高度焦慮

producing

v. 生產（ produce的現在分詞），產生，制作，創作；

例句
...our abysmal record at producing a scientifically trained workforce...
我們在培育具有科學素養的專業人才方面慘不忍睹的記錄

syncope

n. 字中音省略，中略，昏厥；

...the spiralling vortex airflow that slows the plane.
使飛機減速的螺旋形氣流渦旋

You just go on ahead. I'll come by later...
你只管先往前走。我隨后就來。

He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打兒子的,是恨惡他;疼愛兒子的, 趁早管教.

For further information, please contact 414 3925, extension 2253.
詳情請致電414 3925,轉分機2253。

He sat there while I made the case for his dismissal...
他坐在那兒，聽我陳述解雇他的理由。

Baroness Thatcher's claims seem credible to many.
撒切爾女男爵的主張在很多人看來是可信的。

Nothing to be got without pains but poverty.
一份耕耘，一份收獲。

This decree obliges unions to delay strikes.
該法令迫使工會推遲罷工。

The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索權當有支付義務的第一方不能支付時，可以向商業票據的背書人要求支付的權力。

Installation of prefabricated units and other works in progress to coordinate closely.
預制構件的安裝和其他工程的施工進度要配合默契.

The renewed violence this week hardly augurs well for smooth or peaceful change...
本周新一輪的暴力事件預示著順利平和的轉變幾乎不可能實現。

...fresh fruit.
新鮮水果

Major Cities: Amsterdam, Rotterdam, The Hague, Utrecht, Eindhoven, Groningen, Tilburg , Haarlem, Nijmegen.
主要城市: 阿姆斯特丹、鹿特丹、海牙、烏得勒支、艾恩德霍芬、格羅寧根、蒂爾堡、哈勒姆、奈梅亨.

The years before their arrival in prison are not counted as part of their sentence.
他們入獄前的那些年不算在服刑期之內。

...the question which was raised at the beginning of this chapter.
在本章開頭所提出的問題

Water trickles through an underground grotto.
水沿著地下巖洞流淌。

Every inch of shelf space was crammed with books...
書架上全都塞滿了書。

If you found someone loitering at the back of your house after dark, you might feel justified in bringing charges against him.
如果天黑后你發現有人在你房后游蕩, 你完全有理由控告他.