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VERB
變寬
When something broadens, it becomes wider.
例句
The trails broadened into roads...
羊腸小道變成了寬闊的公路。
The smile broadened to a grin.
笑容變得更加燦爛。
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V-ERG
擴大…的范圍；增長，增加（經驗、受歡迎程度）
When you broaden something such as your experience or popularity or when it broadens, the number of things or people that it includes becomes greater.
例句
We must broaden our appeal...
我們必須進行更廣泛的呼吁。
I thought you wanted to broaden your horizons...
我想你是想拓寬自己的視野。
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PHRASE
開闊（心胸）
If an experience broadens your mind, it makes you more willing to accept other people's beliefs and customs.
例句
They say that travel broadens the mind.
他們說旅行能夠開闊心胸。