21.give rise to, lead to, result in, trigger 替换cause
22. There are several reasons behind sth 替换..reasons for sth
23.desire 替换want.
24.pour attention into 替换pay attention to
25.bear in mind that 替换remember
26. enjoy, possess 替换have
27. interaction替换communication
28.frown on sth替换 be against , disagree with sth
29.to name only a few, as an example替换 for example, for instance
30. next to / virtually impossible,替换nearly / almost impossible
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