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whilE表示对比例句

while和but都有转折的意思,但是表示转折的意思时,while同时含有表对比的意思! while作并列连词用,意思为“而,然而”,表对比.而but表转折.注意用心比较体会while与but的句中用意 1.some people waste food while others haven't enough. 有

They were rowing boats while we were climbing the hill 当我的在爬山时 他们在划船

看你想表达什么意思……如果是做“在什么时候”用就不用加逗号,表但是就加

While you are up, close the door. 你要是起来就把门关上. 《21世纪大英汉词典》 While he was not poor, he had no ready cash. 他虽然不穷,却无现金. 《21世纪大英汉词典》 The walls are green, while the ceiling is white. 墙是绿色的,而天花

用whenwhile一般跟正在进行时,是正当……的时候

表示时间时,前者可以表示时间点也可以表示较长的时间段,后者表示的是时间段不能表示时间点.如when he came in ,i was reading.while i was reading ,he came in.

根据具体的句子来判断是“当的时候”还是“然而”.如:Tom is tall while his brother is short.“然而” I was watching TV while my father was reading the newspaper.“当的时候”.Can you buy some stamps for me while you are there?“当的时候”

i like sing while she like dance.While he is writing on his texbook,i am eating an apple.

你好 这个没有规定要用哪个时态,按照你需要表达的意思用现代、将来、过去都可以,而且前后的时态也不需要一致.望采纳.

while一般用在非正式英语中.正式英语中,while表示对比概念的时候,两个事物要是同时发生的.(进一步说明了while表达两个动作同时发生的特性) whereas则是重点表示事物的强对比性,而两者不一定是同时发生的.在当同时出现while和

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