Now or never he must use the strong, if not melodious voice which nature had bestowed upon him.

不过，对于这个能干的小伙子来说，目前也正是一个机会，或者可以说是一个千载难逢的好机会，那就是靠他那虽然不怎么优美动听，但却浑厚有力的天赋歌喉去沿街卖唱。

" It's now or never! " said Jack.

“成败在此一举！”杰克说。

It was now or never, Peter realized.

彼得意识到，机不可失，失不再来。

" It's now or never for us, " he said.

" 对我们来说，要么是现在，要么永远不会。"

In these situations, we can also say, " it's now or never."

在这种情况下，我们也可以说，“机会稍纵即逝”。

He's is running out of energy and knows that it's now or never.

它已经快没劲儿了，知道成败在此一举。

It's now or never. I don't think that's the expression.

It's now or never。（机不可失，时不再来。）我觉得不是这个表达。

I did not want to hurt them, but it was now or never.

我并不打算伤害他们，但事不宜迟。

" With the changes they are making to the laws, it's now or never, " said Leon.

“随着他们对法律的修改，机不可失；时不待我。”

Peter-One figured it was now or never, so he thwipped a web at the arc reactor.

彼得一号觉得机不可失，于是向电弧反应堆射出一张蛛网。

Pulling out her wand, she hurried off in the opposite direction: it was now or never.

她抽出自己的魔杖，朝相反的方向匆匆赶去：要么现在行动，要么就再也没机会了。

It's now or never if you want to ask her out – she's leaving town today.

如果你想约她出去，机不可失，她今天就要离开镇子了。

It's now or never if you want to buy a cheap ticket to go to the big rock festival.

如果你想买一张去参加大型摇滚音乐节的便宜门票，那就现在买吧，千万不要错失良机。

If you're thinking of taking a career break, it's now or never because you won't get the chance again.

如果你考虑离职休息一短时间，那就现在开始吧，机不可失，时不再来。

It felt like now or never.

感觉就像现在或永远不会。

So absolutely, it's now or never.

所以绝对，现在或永远不会。

Daniel knew it was now or never.

丹尼尔知道现在或永远不会。

So what are you saying? It's now or never?

好吧, 你说吧, 现在结婚或者再也不结婚?

If it's now or never, we got to go.

不能错过良机, 我们该走了。

Quite suddenly, her mind was made up. It was now or never.

【now】她突然下定了决心。是现在还是永远。