同时

• 拼音: tóng shí
• 汉字拆解: 同 = 冂 (enclosure) + 口 (mouth), originally meaning 'together/same'; 时 = 日 (sun) + 寸 (inch), meaning 'time'

含义

At the same time; simultaneously. Also used as a conjunction meaning 'moreover' or 'meanwhile.'

As a noun/adverb, 同时 means 'at the same time': 他们同时到了 (They arrived at the same time). As a conjunction, it connects two clauses meaning 'at the same time' or 'also/moreover': 他学习好，同时也很会运动 (He studies well, and at the same time is good at sports). Very useful for expressing parallel events or additional information.

例句

1. 我们两个同时说了一样的话。
2. 她学中文，同时也学日语。
3. 这两件事是同时发生的。

用法指南

语境: time, comparison, formal and informal

语气: neutral

正确说法

• 他们同时开始比赛。(They started the race at the same time.)
• 这个工作很忙，但同时也很有意思。(This job is busy, but at the same time it's very interesting.)

错误说法

• 在口语中过多使用同时连接句子 (Don't overuse 同时 as a conjunction in casual speech — it can sound overly formal; use 也 or 还 for a more natural tone in everyday conversation)

起源与历史

同 (tóng, same/together) + 时 (shí, time). Literally 'same time' — things happening at the identical moment.

文化背景

世代: All ages

社会背景: Universal