He tried hard and long to persuade Spain to relinquish its hold on Cuba and so avoid war.

他一直试图劝说西班牙放弃对古巴的控制，避免开战。

youdao

That leads to a runaway greenhouse effect — and that, in turn, makes it awfully hard to hold on to the oceans and seas that served as the incubators for all terrestrial life.

这造成了失控的严重温室效应——这反过来让海洋很难在金星表面存在，而海洋是孕育地球上一切生命的摇篮。

youdao

These machines hold data that computer users don't want to store on their own hard drives.

这些机器里存放着用户不想存在自己电脑里的数据。

youdao

The property company has been hard hit by the global financial and real estate crises, putting on hold many of the grandiose projects for which Dubai has gained fame.

VOA: standard.2009.11.30

Among other things, the turn of events has removed a huge competitive advantage for Ford at just the time the brand could use one, in view of its struggles to continue to grow and hold on to hard-won market share.

FORBES: Ford Is Cut Up By Cutting Edge Of Car-Infotainment Technology

Because the demands on soldiers are so high, the services often find it hard it to hold on to people they have trained at huge expense.

ECONOMIST: The army

At the moment, the two control only 201 of parliament's 550 seats, and opinion polls suggest it may be hard for them to hold on even to that many.

ECONOMIST: Turkey