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CONJ-COORD
減;減去
You use minus to show that one number or quantity is being subtracted from another.
例句
One minus one is zero...
1減1等于0。
They've been promised their full July salary minus the hardship payment.
他們已經得到承諾，7月份的工資除去辛勞補助外將全額發放。
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ADJ
負的;小于零的
Minus before a number or quantity means that the number or quantity is less than zero.
例句
The aircraft was subjected to temperatures of minus 65 degrees and plus 120 degrees.
這架飛機曾經在零下65度和零上120度的溫度下飛行。
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減(指學校評分中某一等級中的“略差”，但又好于下一個等級)
Teachers use minus in grading work in schools and colleges. 'B minus' is not as good as 'B', but is a better grade than 'C'.
例句
I'm giving him a B minus.
我準備給他一個B—。
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PREP
失去;缺少
To be minus something means not to have that thing.
例句
The film company collapsed, leaving Chris jobless and minus his life savings.
電影公司垮了，克里斯沒了工作，也失去了他一生的積蓄。
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N-COUNT
不利條件；缺點
A minus is a disadvantage.
例句
The minuses far outweigh that possible gain...
弊端遠遠大于那可能獲得的收益。
The plusses and minuses were about equal...
利弊大致均衡。
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PHRASE
上下;左右
You use plus or minus to give the amount by which a particular number may vary.
例句
The poll has a margin of error of plus or minus 5 per cent.
民意測驗有上下5%的誤差率。