The plan is designed to motivate employees to work more efficiently.

　　這個計劃旨在促使員工更加卓有成效地工作。

　　Which fuel burns most efficiently?

　　哪種燃料燃燒效果最佳？

　　The wind-down of the company was handled very efficiently.

　　處理公司逐步縮減直至關閉的事宜效率很高。

　　How do you motivate people to work hard and efficiently?

　　你是怎樣激勵大家奮發高效地工作的？

　　They seemed able to work together very efficiently.

　　他們看來能很有效率地合作。