把车上装的东西勒紧to tie down a load

参见：刹车[shāchē]

喻指中止正在进行的活动和事情to halt

• 不少渔业大队不煞车，总想多捕点鱼。

  Many fishing teams do not stop their fishing, and always want to catch more fish.

• 第二次丛书热应该可以煞车了。

  The second wave of popularity of book series can probably be halted.