他们一直处于常备不懈状态以防突然袭击的英文

they were constantly on the alert not to be taken by surprise

• 他们:    they
• 一直:    straight; straight ...
• 处于:    be
• 常备不懈:    keep to the concep ...
• 状态:    status; state; con ...
• 突然袭击:    surprise attack; s ...

例句与用法

1. They were constantly on the alert not to be taken by surprise .
   他们一直处于常备不懈状态以防突然袭击。