- 邀请；召来：
We had better call in a specialist at this critical moment.
在这个关键时刻我们最好请一位专家来。
- 收回(硬币、债券、图书等)；使(通货等)停止流通；请求交还：
All old ￡10 notes were called in by the government.
所有旧的10镑的纸币均被政府收回。
- 要求付清；要求还债：
The bank wants to call in all money lent last year.
银行要将去年发放的贷款全部收回。
- 叫…进屋：
It was getting dark ,he called the children in.
天渐渐黑了，他把孩子们叫进屋来。
- 将…从前哨撤回：
The advance guards of the regiment were called in.
该团的前哨卫队已被撤回。
- 顺便访问，来访：
Don't forget to call in on your way home.
别忘了你回家时顺路来这里玩玩。
- 电话告知：
The chief editor has just called in to say that he will leave for Shanghai this evening.
总编辑刚才打来电话说他今晚要去上海。
- 停靠：
The ship calls in at every port along the coast.
这艘船在沿岸每个港口都停靠。
- 【计算机】调入(子程序)