there is no use(in) doing sth 做某事没有用
there is no/some difficulty(in) doing sth. 做某事没有/有困难
there is nothing wrong with 没有问题，很正常，
there's no need to do sth. 没有做某事的必要
these days 现在; 如今; 目前
think about 思考；考虑
think highly/well of 尊重;高度评价; 器重
think nothing of 把……看得平常；把……看得不重要；不把……当一回事
think of 思考；考虑；关心
think of…as 把……看作是，以为……是
