◎ 投机取巧 tóujī-qǔqiǎo[speculate and take advantage of opportunity;resort to dubious shifts to further one's interest;seize every chance to gain advantage by trickey] 耍小聪明,利用时机谋取私利 投机取巧最可耻-----------------国语辞典:利用时机,获取利益。如:「我们做事要务本踏实,不可投机取巧。」近脚踏两船
◎ 投桃报李 tóutáo-bàolǐ[return a favor with a favor;scratch my back,and I will scratch yours] 投之以桃,报还以李。比喻彼此善来善往,以礼相待 投桃报李,虽怪不得大姐姐,然作此隐语,未免过于深刻。——《野叟曝言》-----------------国语辞典:你送桃子,我回赠以李子。语本《诗经.大雅.抑》:「投我以桃,报之以李。」后用以比喻彼此间的赠答。《野叟曝言.第三九回》:「投桃报李,虽怪不得大姐姐;然作此隐语,未免过于深刻。」也作「桃来李答」。近礼尚往来