vt.排除障碍
A telephone call between Mary and Jack will unblock the whole situation. 玛丽和杰克之间的一段电话通话扫除了一切障碍。
We had to call a plumber to unblock the drains. 我们得叫管道工来通一通下水道。
Father told me to unblock the pipe to let the water run through. 父亲叫我把管子打通, 让水流过去。
未被拦阻
n.防晒霜；紫外线防护霜
