胆小如鼠 as timid as a rabbit

如鱼得水 like a duck to water

多如牛毛 as plentiful as blackberries

一箭之遥 at a stone's throw

水中捞月 to fish in the air

半瓶子醋 half-baked

蠢得像猪 as stupid as a goose

害群之马 black sheep

挥金如土 to spend money like water

醉如烂泥 drunk as a sailor

如果上的蚂蚁 like a cat on a hot tin roof

搜得像猴子 as thin as a shadow

如履薄冰 to tread upon eggs

棋逢对手 diamond cut diamond

挂羊头卖狗肉 cry up wine and sell vinegar