He\\\'s still hesitating about joining the expedition.

他對于參加這次探險隊(duì)仍猶豫不決。

He hesitated about what to do next.

他對下一步做什么猶豫不決。

I hesitated about whether to accept the invitation.

我對是否接受邀請猶豫不決。

We hesitated at the propriety of the method.

我們對這種辦法是否適用拿不定主意。

He hesitated at nothing.

他對任何事都毫不猶豫。

They hesitate between fighting and submitting.

他們不能決定是戰(zhàn)還是降。