a lion in the way (path)

横梗于前途的难关。

as brave as a lion

极为勇猛。

beard the lion in his den

【口】太岁头上动土；正面与自己所害怕的人(或有权势的人)争执。

have (place; put) one's head in the lion's mouth

置身险境。

see (show) the lions

(引导)参观名胜。

the lion's share

大部分；最大的部分。

throw sb to the lions

(非正式用法)使不再能被利用的人陷于困境；责备某人。

twist the lion's tail

诋毁外国(特指英国)。