必须

The debt must be paid in full.

债务须全部付清。

We’ll have to bide our time until the rain stops.

须等到雨停。

It is necessary to decrease the amount of coal used.

须减缩用煤量。

The two ends must be bent outward.

两端须向外弯。

New car should be clean, and the old car should be derust before working.

1、所有新车须底盘及车厢清洗干净，旧车有锈的地方须铲除。

A coat must conform to the figure of the wearer.

衣服须与身材相配。

We must keep back a reserve of food.

须贮存一些。

She had to go to the hospital and have her stomach pumped .

须去院洗胃。

We must be loyal to our motherland.

须忠于祖国。

We must pay taxes to the State.

须向国家纳税。

The ashes must be scraped out from the stove.

炉里的灰须掏尽。

You must show discretion in choosing your friend.

你择友时须慎重。

The rough edges of the material must lap under.

料子的毛边须包没。

The stain will have to be sanded out.

这斑点须用砂纸磨掉。

Books must be kept according to a prescribed form.

须按照规定的形式记账。

The company must keep a tight rein on spending.

公司须严格控制支出。

We have to fit ourselves to the requirements of our jobs.

须适应工作的需要。

It's necessary for us to study hard .

须努力学习。

The harvest must be reaped in good time.

农作物须及早收割。

We have to discharge ourselves of our duties.

须尽的职责。