得当的英文：
expedient

To do a thing properly
办事得当

The director general made proper arrangements after due consideration on the matter.
局长对此事裁处得当。

You must demean yourself properly
你必须举止得当。

It is advisable for me to write to him?
我给他写信得当吗?

If this product is properly merchandised, it should sell very well.
这一产品如果促销得当，该是很畅销的。

His appraisal of the novel is appropriate.
他对这部小说的评价非常得当。

Great books are the most readable. They will not let you down if you try to read them well.
名著隽永耐读。如果读法得当，你就会感到开卷有益。

It is not for me to question the propriety of your enmity
我并没有资格来问你反对他是否得当。

Properly implemented, encryption can be virtually impenetrable
加密技术如果使用得当，其实是很难破解的。

The effectiveness of your speech depends on your diction.
你的演说效果在于你的用字是否得当。

A temporary or expedient substitute for something else.
权宜之计暂时或临时替代其它事物的东西

Actions that represented the ultimate in political expediency.
将政治权宜之计表现的淋漓尽致

They found a number of simple expediencies to dissolve the contract
他们找出了许多解除合同的简便方法。

It was difficult to strike the right balance between justice and expediency.
在公正与私利之间很难两全.

They found a number of simple expediencies to dissolve the contract.
他们找出了许多解除合同的简便方法。