step in
短语
大学
走进, 干涉, 作短时间的非正式访问
词形变化
stepped in
stepping in
steps in
三单
steps in
stepping in
现在分词
stepped in
过去式
stepped in
过去分词
释义与例句
v.
-
1.
To act as a replacement or substitute.
不及物 -
2.
To get involved; to act.
不及物