This should be maintained for as long as it is needed.
这种局面应该在必要的时间内尽量保持。
It is firmly maintained that such regulations should be strictly observed.
人们坚定地认为这些规章应该严格遵守。
It is absolutely vital that food supplies should be maintained.
维持食物的供给是绝对必要的。
It is absolutely vital that food supplies should be maintained.
维持食物的供给是绝对必要的。
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