happen by
短语词形变化
happened by
happening by
happens by
三单
happens by
happening by
现在分词
happened by
过去式
happened by
过去分词
释义与例句
v.
-
1.
to come across, to chance upon, to find unexpectedly or accidentally
美国 过时 及物 -
2.
to show up unexpectedly or accidentally
美国 过时 不及物