be concerned in aux.涉及到,与...有关,参与 concern in这种说法不对,LS的
应该是这样的!
He was concerned ______the crime.A in B about C with D of A
He was concerned ______the crime.A in B about C with D of A
英语人气:107 ℃时间:2020-05-06 15:58:03
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