12.Attach great importance to sth.
13.… is a hot issue
14. Sat is fy/meet one’s needs and desires
15.Sth. benefit sb.= sth. do good to sb.
sb. Benefit from sth. sb. receive benefit from/by sth.
sth/it. is beneficial to sth./sb.
16.Try every means to do sth./strive to do sth.
17.Sb. do sth., while sb. others do sth. else
18. It is supposed to do sth.
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