多久

How long have you had your toothache?

你的牙痛了多久了？

The only thing I can do, is to appeal to you who are Christians, to help me seed these torrents, because I don't know how much longer I'm able to do this.

我唯一能做的，就是呼吁你谁是基督徒，帮助我的种子这些种子，因为我不知道多久，我能够做到这一点。

Adjust how long you need to hold down a mouse or trackball button before your click is "locked."

调整您需要按下鼠标或滚球按钮多久单击才能被"锁定"。

How long is the validity of the trade mark?

注册商标的有效期通常是多久？

How far is it to walk from here to Trafalgar Square?

从这儿步行到特拉法尔加广场要多久？

You need to transfer at central station.

你要在这里停留多久？

At first there was only a trickle of people, but soon a crowd arrived.

开始只来零星几个人，过了没多久，来了一大群人。

Aerial refueling development was renewed about five years later. On New Year's Day 1929, a Fokker C-2 trimotor nicknamed "Question Mark"(because no one was sure how long it might remain aloft) began a record-setting flight.

大约五年之后发展空中加油技术再一次被重新提起。1929年的元旦，一架被戏称为"问号"的福克C-2型三引擎飞机（因为没有人能确定它能在天上呆多久）开始了创记录的飞行。

If you have decided to try out something new,also decided how long you will stick to it.

如果你决定尝试一下新的事情，同时请也下个决心你得坚持多久。

How often do you go to see your grandparen ts?

你多久去看你的祖父母一次？

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。