双语例句
Only one person shall be allowed on a ladder at a time except for stepladders that are equipped with steps on both sides. (Rungs are not considered steps.)
梯上一次只能有一个人,两面有梯阶的活梯除外。(横档不能作为梯阶)。
pl-n. 活梯;凳梯;(stepladder的复数)
Only one person shall be allowed on a ladder at a time except for stepladders that are equipped with steps on both sides. (Rungs are not considered steps.)
梯上一次只能有一个人,两面有梯阶的活梯除外。(横档不能作为梯阶)。