take the risk 冒险
face a challenge 面临挑战
take the initiative 采取主动
step up 挺身而出
1. Someone must bell the cat if we want to catch the thief.
如果我们想抓住那个小偷，必须得有人去承担这项危险任务。
2. It's a difficult task, but someone has to bell the cat.
这是一项艰巨的任务，但总得有人去挺身而出。
A: We need someone to confront the manager about the new policy.
A：我们需要有人去就新政策与经理交涉。
B: I'll bell the cat, but I'm very nervous.
B：我会去冒险尝试的，但我非常紧张。
1) 勇于承担风险
2) 做大家都不敢做的事
3) 挺身而出解决难题
1. 挺身而出做某人不敢做的事
e.g.
He finally decided to bell the cat and speak up against the injustice.
他终于决定勇敢面对并反对这种不公正行为。
idiom
1. To perform a dangerous or unpleasant task that others are too afraid to do.
Synonym: take the initiative