他们不得不经常设法应付利润较少的问题。

They have always had to do with relatively small profit margins.

youdao

北方人不得不经常忍受沙尘暴的侵袭。

People in the north often have to suffer from sandstorms.

youdao

我不得不经常洗手和换衣服。

I had to wash my hands and change my clothes often.

youdao

他们不得不经常设法应付较少的利润额。

They have always had to make do with relatively small profit margins.

youdao

他们容易破损并不得不经常更换，不耐用。

They inevitably break and have to be replaced very often, which is unsustainable.

youdao

虽然母亲患肾炎，也不得不经常外出打工。

Although the mother is suffering from nephritis, she had to frequently work.

youdao

我不得不经常去那儿。

I have to get there often.

youdao

在地热学中，我们不得不经常处理固体与空气之间的边界问题。

In geothermics we have mostly to deal with boundaries between solids and air.

youdao

老师：史密斯先生和夫人，我很抱歉我不得不经常要你们到学校来。

Teacher: : Mr. And Mrs. Smith, I'm sorry that I have to bring you here to school so often.

youdao

为了做这个（能交得起学费），她不得不工作，因此不经常在家。

To do this, she had to work, and so was not often at home.

youdao

为了做这个，她不得不工作，因此不经常在家。

To do this, she had to work, and so was often not at home.

youdao

为了做这个，她不得不工作，因此不经常在家。

To do this, she had to work, and so was often not at home.

youdao