将“invariably"翻译成中文

The attacks, all carried out using vehicle borne improvised explosive devices and suicide bombers, invariably took place in crowded civilian areas.

使用载有简易爆炸装置或自杀炸弹袭击者的车辆实施的袭击总是发生在拥挤的平民区域。

However, different levels of output invariably involve different methods of production and hence will also require gross investment

但是不同的产出水平总是要求采取不同的生产方法,因此也需要作毛投资。

The vessels are invariably being boarded and passenger manifests, travel documents and cargo are scrutinized.

所有的船只都常常被登临检查而且旅客的货单、旅行证件和货物都受到详查。