one by one

She read all of Agatha Christie’s novels one by one.

她逐读完了阿加莎·克里斯蒂的小说。

The doorman allowed the people in one by one.

看门的个个进去。

He ticked the items one by one.

他把这些项目个个标出记号。

One by one the guests left.

客位位地离开了。

Needle slot on the neilsbed armor plate is usually milled one by one by milling machine controlled manually.

针钢板上的针槽通常是由工控制用条条出来的，费工费时，槽精度低。