singly

/ˈsɪŋɡli/ 127GRE
If people do something singly, they each do it on their own, or do it one by one. 单独地; 一个接一个地

adverb [方式副词]逐一地;个别地;各自地;直截了当地

Guests arrived singly or in groups.
客人有单个来的,也有三三两两一起到的。

单词造句:
网友用“Singly”造句精选
They marched out singly or in pairs. 他们一个一个地或成双成对地走出去。
The stamps are available singly or in books of ten. 邮票有单枚的,也有十枚一册的。