不得不

Aerosol is one of the important indoor air pollution resources and become a serious problem.

而气溶胶作为室内空气污染的主要来源之一，也自然成为我们不得不重视的一个严峻问题。

I have to do some important affairs .

我不得不去做一些重要的事情。

After five years, due to instinct, I began to suspect my description, even I feel uneasy for what I said emotionally. For anytime, being over sensational will lead to being affectedly unconventional. That is a smelling trap, unbearable and warning.

即使有未老先衰的恐惧，我也已经开始接受由于时间的逼迫而不得不接受的成熟，那或许是一种被迫的坦然，但它毕竟是一种更为进步的态度，对过去的五年，对一切事。

I can't afford to take them back, but I have to.

" "我不能带他们回来，但我不得不这样做。

I had to use restraint when i was discontent with my manager.I didn't dare to affront him.

当对我的经理不满时我不得不保持克制，我不敢冒犯他。

I must explain to my boss again and again, but the result is be rebuked badly by aflame with passion boss.

我不得不一再向我的老板解释，但结果是被怒火中烧的老板严重斥责。

You can see in this pic that I had to re-position the aluminum angle bracket farther aft.

你可以看到在这方面的事先知情同意，我不得不重新定位，铝斜支架远尾部。

AFTER ALL THIS TIME THAT WAS ALL I HAD TO DO.

经过这么长的时间，这是我不得不做的。

I can't meet my friend after school because I have to do my homework.

放学后我不能去见我的朋友，因为我不得不去做我的作业。

In the F-15, pilots have to hit afterburner and stay there to go supersonic.

在F-15上，飞行员要保持超音速飞行就不得不打开加力。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失