duck and cover
短语词形变化
ducked and covered
ducking and covering
ducks and covers
三单
ducks and covers
ducking and covering
现在分词
ducked and covered
过去式
ducked and covered
过去分词
释义与例句
v.
-
1.
To duck under a surface and cover one's face with one's hands, as a means to protect oneself from flying debris etc.
不及物