This goes back to the first command (in reverse order) that matches the first letter you typed; letters typed successively match more and more specifically.

这将返回到与您键入的第一个字母相匹配的第一个命令(以反向顺序)；随后键入的字母将使匹配变得越来越明确。

youdao

Airbnb wrote software that combs through these messages to strip out e-mail addresses and phone numbers, even ones that are typed out in letters.

FORBES: How Airbnb Hacked the Reach-Around Problem

Interview everyone who has a grudge against him--old secretaries who had to correct his grammar on the letters they typed, the neighbor who had to deal with the leaves from the Hatch maple tree.

CNN: The Republicans were right, but

The letters are typed and signed by Chapman.

WSJ: Letters from Lennon killer to NY cop on sale in LA