Could you spare one of your staff to help us out?
你能不能從你手下抽一個人過來幫幫我們？
God help us if this doesn't work.
如果這個行不通，那就要靠上帝了。
Stick around; we'll need you to help us later.
別走開，過一會兒我們還需要你幫忙呢。
This information will help us build a picture of his attacker.
這條信息將有助于描畫出襲擊他的人的相貌。
She won't be able to help us with all the family commitments she has.
她有這么多家務事，幫不了我們。