keying

['ki:iŋ]

n. 锁上, 键控法, 发报, 自动开关, 按键
动词key的现在分词形式

例句与用法：

I dropped my key somewhere about here.

我把钥匙掉在这附近某个地方了。

A stroke of a key, as on a word processor.

按键(如在文字处理机上)按一下键