從容不迫calm;unruffled
寸步不離very close;inseparable;usually refers to two or more people
打草驚蛇inadvertently alert an enemy/opponent;punish sb. as a warning to others (lit. beat the grass to scare the snake)
大吃一驚be greatly surprised
大海撈針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
大同小異similar in essential aspects;different in minor details
大義滅親uphold righteousness above one’s family