Online registration can be understood as signing relevant agreements with the other party and submitting materials, so it is changed to sign up.

Lexical analysis:

symbol

English? 【sa？ n]？ Beautiful? 【sa？ n]？

Noun (short for noun)? Signs; Omen; Signs, symbols; Gestures; signal

Verb (short for verb)? Sign, sign; Signal; Gestures; signal

Phrases:

Sign the check.

Sign a document. Sign a document.

Call sign call signal

Extended data

Usage of words:

The basic meaning of a sign is "mark, symbol", which refers to a concise symbol or sign written or portrayed on an object and representing a fixed meaning, so that people can know what it represents at a glance. The extension of signs can be interpreted as gestures, postures, signals, symptoms and signs.

Sign is often followed by a phrase of as an attribute, and sometimes it can be followed by an infinitive or that clause.

When sign is used as a noun, it means "signature", and when it is converted into a verb, it can be interpreted as "signature", which generally means that people sign documents and letters;

Sign language, as a noun, can also be interpreted as "gesture", and when it is converted into a verb, it means to express an intention with a gesture when it cannot be expressed in words or for some reason you don't want to communicate orally.

Sign can be used as an intransitive verb or a transitive verb. When used as transitive verbs, nouns, pronouns and that clauses can be used as objects, and infinitives can also be used as compound objects of object complements.