ladder
英 ['l?d?(r)] 美 ['l?d?r]
n. 階梯；梯子；梯狀物。
climb a ladder 爬梯子；come down ladder 從梯子上下來
drop from ladder 從梯子上掉下；employ ladder 用梯子
fall from the ladder 從梯子上掉下來；fall off the ladder 從梯子上掉下來
造句：
Diligence is often a ladder to success.
勤勉常常是通往成功的階梯。
He was halfway down the ladder when he fell.
他下階梯時，半路摔倒了。