maintain 四级六级

She maintains that the accusation is groundless.

她坚持该控是毫无根据的。

We maintain cordial relations with our neighbors.

我们与邻里保持亲切友好的关系。

He maintained an attitude of high seriousness.

他保持了极为认真的态。

The country maintains military bases on foreign soil.

那个国家在国外设有军事基地。

The proposal is annual and cerated maintain twice.

建议每年上蜡保养两次。

The nuclear deterrent has maintained an uneasy peace.

核威慑一直使和平处于不稳定状态。

We manufacture and maintain mixer tank for Rinker Materials.

为瑞科尔公司制造并修搅拌罐。

The conservatives are keen to maintain the status quo.

保守派热中于持现状。

She maintained her composure, though with difficulty, throughout the trial.

尽管十分困难，她在这场磨难中还是保持冷静。

For three nights, the shepherd maintained his lonely vigil.

牧羊人孤零零地连续看守了三个晚上。

She struggled to maintain the charade of not being afraid.

她竭力装出不害怕的样子。

It is clearly illogical to maintain such a proposition.

坚持这种主张显然是没有道理的。

This island is maintained as a sanctuary for endangered species.

那个岛继续作为濒危物种的保区。

It's endless work maintaining the house in good repair.

要让房屋保持得很好是件干不完的活。

The idea is to maintain the regularity of the heartbeat.

问题就是要持心跳的规律性。

She maintained her serious mien until the interview was over.

直到访问结束她一直保持严肃的态。

The company has struggled to maintain its domination in the marketplace.

该公司奋力持其市场优势。

As wave crested the sailor grab onto the handspike to maintain balance.

起浪时水手抓住绞盘棒以保持平衡。

The trophectoderm maintains the pressure by pumping the fluid into the caity.

滋养层通过向腔内泵入液体来持这种压力。

We all have an interest in maintaining the integrity of the ecosystem.

持生态系统的完整是我们共同的利益。