First, the weapons should be intended for use only in retaliation after a nuclear attack. Second, the possession of the weapons must be a temporary expedient.
首先，这些武器应当只在遭受核袭击后反击时才使用。其次，这些武器的拥有必须是一种临时的应急手段。
The curfew regulation is a temporary expedient made necessary by a sudden emergency.
宵禁令是应对突发事件时必要的临时权宜之举。
It's just a temporary expedient.
这只是个权宜之计。
Pursuing the two-level teacher system in institutions of higher learning is by no means a temporary expedient, but a strategic measure to enhance the quality of talent-training.
在高等院校推行“二级导师制”绝非权宜之计，而是一项旨在不断提升人才培养质量的战略举措。
"I think it would be expedient to introduce a temporary ban on export grains and other agricultural goods," Mr Putin told a cabinet meeting.
“我认为暂时禁止谷物及其它农产品出口是适宜的，”普京在内阁会议上表示。
"I think it would be expedient to introduce a temporary ban on export grains and other agricultural goods," Mr Putin told a cabinet meeting.
“我认为暂时禁止谷物及其它农产品出口是适宜的，”普京在内阁会议上表示。
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