请务必做到不让孩子们探身窗外。

See to it that no children should lean out of the window.

youdao

务必做到端上的咖啡是热的。

Make sure you serve the coffee hot.

youdao

如果你不能做到上面任何一条建议，那请务必遵守这一条。

If you don't follow any of these tips, follow this one.

youdao

如果你不能做到上面任何一条建议，那请务必遵守这一条。

If you don't follow any of these tips, follow this one.

youdao