knock at the door of
短语词形变化
knocked at the door of
knocking at the door of
knocks at the door of
三单
knocks at the door of
knocking at the door of
现在分词
knocked at the door of
过去式
knocked at the door of
过去分词
释义与例句
v.
-
1.
Alternative form of knock on the door of.