爱不释手fondle admiringly

　　爱财如命skin a flea for its hide

　　爱屋及乌love me，love my dog He that loves the tree loves the branch

　　安居乐业live and work in peace and contentment

　　白手起家build up from nothing

　　百里挑一one in hundred

　　百折不挠be indomitable

　　半途而废give up halfway leave sth. Unfinished

　　包罗万象all-embracing all-inclusive

　　饱经风霜weather-beaten

　　卑躬屈膝bow and scrape cringe

　　悲欢离合vicissitudes of life

　　背道而驰run counter to run in the opposite direction

　　本末倒置put the cart before the horse

　　笨鸟先飞the slow need to start early

　　必由之路the only way

　　闭关自守close the country to international intercourse

　　变本加厉be further intensified

　　变化无常chop and change fantasticality

　　变化无常chop and change fantasticality

　　别开生面having sth. New

　　别有用心have ulterior motives

　　彬彬有礼refined and courteous urbane

　　兵不厌诈in war nothing is too deceitful

　　博古通今erudite and informed

　　不败之地incincible position

　　不耻下问feel not ashamed to learn from one's subordinates

　　不可救药be past praying for beyond redemption

　　不劳而获reap where one has not sown

　　不屈不挠fortitude indefatigability perseverance persevere tenacity

　　不速之客crasher uninvited guest

　　不同凡响outstanding

　　不言而喻speak for itself tell its own story tell its own tale went without saying

　　不遗余力spare no effort spare no pains

　　不以为然not approve object to

　　不义之财filthy lucre filthy pelf the mammon of unrighteousness

　　不亦乐乎extremely

　　不远千里go to the trouble of travelling a long distance

　　不约而同happen to coincide

　　不择手段by any kind of means by hook or crook play hard by fair means or foul

　　不知所措be at a loss be all adrift lose one's head out of one's wits

　　才疏学浅have little talent and learning

　　惨绝人寰extremely cruel

　　沧海桑田time brings a great change to the worlds

　　沧海一粟/九牛一毛a drop in the bucket

　　草木皆兵a state of extreme nervousness

　　层出不穷emerge in endlessly

　　层峦迭嶂peaks over peaks

　　察言观色carefully watch what sb. is doing and saying

　　姹紫嫣红very beautiful flowers

　　畅行无阻checkless

　　车水马龙heavy traffic

　　沉默寡言taciturnity

　　称心如意well-content

　　趁热打铁strike while iron is hot Hold a wolf the iron is hot

　　成群结队gang horde

　　诚惶诚恐with reverence and awe

　　诚心诚意sincere desire

　　承上启下a connecting link between the preceding and the following

　　吃苦耐劳tough

　　吃里扒外live on sb. while helping others secretly

　　痴心妄想、胡思乱想wishful thinking

　　持之以恒preserve

　　叱咤风云ride the whirlwind

　　愁眉苦脸pull a long face snoot

　　愁眉苦脸的，愁眉苦脸地woebegone 、morosely

　　臭名远扬，臭名昭著flagrancy， notorious

　　出乎意料unexpected

　　出口成章have an outstanding eloquence

　　出类拔萃，鹤立鸡群fill the bill supereminence

　　出谋划策give counsel suggest

　　出奇制胜defeat sb. by a surprise action

　　出生入死go through fire and water

　　触类旁通comprehend by analogy

　　垂头丧气，无精打采 down in the mouth lose one's spirits with the tail between the legs

　　垂头丧气的blue about the gills crestfallen downhearted

　　绰绰有余more than sufficient

　　此起彼伏as one falls，another rises

　　从容不迫go easy take one's time

　　从容不迫的leisured unhurried

　　从容不迫地by easy stages

　　粗枝大叶careless slapdash sloppy

　　粗枝大叶的broad-brush

　　措手不及unaware unprepared

　　错综复杂、扑朔迷离 anfractuosity

　　错综复杂的anfractuous daedal reticula sinuous

　　打草惊蛇act rashly and alert the enemy