step in
介入；插手干预；作短时间的非正式访问
同义词
参考例子
1.Here we are, this is my house. Why don't you step in?
我们到了，这就是我家，进来坐一会儿吧!
2.The first step in yarn preparation for both weaving and knitting is winding.
在机织和针织生产中，纱线准备的第一个工序是络纱。
3.The excavation work as the first step in the Stonehenge archaeologists dug a deep ditch house.
作为此次挖掘工作的第一步，考古学家在巨石阵内部开凿了一条深沟。
英文解释
n.
1.short underpants for women or children (usually used in the plural)
2.get involved, so as to alter or hinder an action, or through force or threat of force
3.act as a substitute
网络释义
step in
插入，介入; 介入; 欢迎光临; 干预;
step-in chemise
女式无袖胸衣;
Step-In Binding
踩进鞋套;
STEP FORWARD IN MISSIONS
迈步差传;
step-in
便鞋(有松紧带式); 可穿的; 内衣; 船鞋;