I

I kept dropping hints but he still didn't twig.
   我不斷向他暗示,可他還是不明白。

I feel a twinge in my back now and again.
   我不時感到背痛。

I want to know what is our ulterior action.
   我想要知道下一步的行動是什麼。

Since the ultimatum was never delivered, I had no opportunity to read it.
   因為這個最後通牒始終未下達,所以我沒有機會讀到它。

I often suffer from unaccountable headaches.
   我常莫名其妙地頭疼。

I find his rudeness unbearable.
   我簡直受不了他的粗魯無禮。

I am still uncertain whether he will come today.
   我仍不能肯定他今天是否會來。

I was uncomfortable in the back seat.
   我坐在後座覺得不舒服。

I refuse to have such goings-on under my roof.
   在我家裡不准有這種行為。

I asked him for a job under the impression that he was the head of the firm.
   我以為他是公司老板而向他求職。

She and I can't live under the same roof.
   她跟我沒法待在一起。

I used to go to work by underground when I was in London.
   我在倫敦時,通常乘地鐵上班。

I seem confident, but underneath it all I'm terribly nervous.
   我表面上充滿自信,但骨子裡頭緊張極了。

I don't understand what you're talking about.
   我不明白你在說什麼。

I understand her to be a distant relation of his.
   據我了解,她是他的一位遠親。

I understand that you will be moving here soon.
   我聽說你就要搬到這兒來住了。

Now I understand.
   現在我懂了。

I doubt whether he had any real understanding of Shakespeare.
   我懷疑他是否真正理解莎士比亞的作品。

I can not undertake that you will make a profit.
   我不能擔保你會獲利。

I left my work undone.
   工作未完成,我就放下了。