1.respond to 對…作出反應

Never respond to requests for personal or account information online ( or over the phone).
絕對不要響應那些在線要你提供個人或賬戶信息的請求（或通過電話的這類請求）。

A spokesman didn't respond to requests for comment.
該公司一位發言人沒有回應記者的置評請求。
2.fall back 后退，退卻

We must have something to fall back upon.
我們總得有點可以依靠的東西。

The oil price may not rise much further, and could even fall back.
石油價格可能不會持續走高，甚至會出現回落之勢。

3.contribute to 促成 ；投稿；有助于

Such actions would contribute to the desired structural transition.
此類舉措將有助于實現中國渴望的結構轉型。

They also may contribute to preventing severe disease and death.
這些藥物還可有助于預防嚴重疾病和死亡。

4.offer to 提供

A sep is a retirement savings plan that small companies often offer to their employees.
一個sep是一個退休儲蓄計劃，是小公司經常為員工提供的。

Another significant gap exists between mobile access to e-resources presently offered by libraries and the services libraries wish to offer to mobile users.
另一個顯著的斷層是現有的移動設備接入電子資源與圖書館希望向移動讀者提供的服務之間的差別。