叶公好龙：professed love of what one really fears
东施效颦：crude imitation with ludicrous effect
南柯一梦：a fond dream or illusory joy / fond dream
四面楚歌：to be besieged on all sides
悬梁刺股：to be extremely hard-working in one's study
初出茅庐：at the beginning of one's career
罄竹难书：(of crimes)too numerous to mention
失之东隅，收之桑榆：What one loses on the swings, one gets back on the roundabouts
塞翁失马，焉知非福？：A loss may turn out to be a gain
庆父不除，鲁难未已：There will always be trouble until the trouble-maker is removed
