第1个回答 推荐于2016-12-01
play a very important/crucial role/part in sth.
have an important effect on sth.
act as an important part to sth.本回答被提问者采纳
第2个回答 2008-10-28
play an important role/part
第3个回答 2008-10-28
play a vital/significant roll
第4个回答 2008-10-28
STH plays an important part in
第5个回答 2008-10-28
play a very important role