用法点击
while 用作连词时,意思是“当……的时候,表示两个动作相伴随而发生。例如:While she was typing, her brother was playing with a ball. 当她在打字时,她弟弟正在玩球。while 还可以用于对同类的两个动作进行对比,意思是“而。例如:You like sports while I like reading. 你喜欢运动而我喜欢读书。while 用作名词时,意思是“一会儿。例如:After a while, there came a strange noise. 过了一会儿,传来一种奇怪的声音。
3. around prep. & adv. about; not far away (in place or time) 大约;在……周围
示例
The earth moves around the sun. 地球围绕太阳转。
用法点击
around 既可以用作介词,也可以用作副词,意义上差别不大。如:He asked me to come here around the o'clock. 他要我10点左右来。(用作介词)She turned around at such a noise. 听到这样的吵闹声,她回头看了看。(用作副词)
辨析round 和around:
around 与round 通常可以互换,只不过美式英语常用around,而英式英语常用round,例如:You can see the post office round / around that corner. 在那个角落附近你就可以看到邮局。它们的不同之处是:round可以用作形容词、副词、介词、动词、名词;而around只能用作副词或介词。例如:He has a round face. 他有一张圆圆的脸。(用作形容词)The river rounded the stones. 河水使石头成了圆形。(用作动词)
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