从容不迫calm;unruffled

寸步不离very close;inseparable;usually refers to two or more people

打草惊蛇inadvertently alert an enemy/opponent;punish sb. as a warning to others (lit. beat the grass to scare the snake)

大吃一惊be greatly surprised

大海捞针hard to find;like finding a needle in a haystack (lit. to fish a needle from the sea)

大可不必need not;unnecessary

大器晚成great minds mature slowly;Rome wasn’t built in a day (lit. it takes a long time to make a big pot)

大失所望extremely disappointing

大同小异similar in essential aspects;different in minor details

大义灭亲uphold righteousness above one’s family