Meanwhile / at the same time (与此同时)

Structure Event A。与此同时，event B (parallel / simultaneous)

与此同时 (yǔ cǐ tóngshí), 'at the same time as this', is a simultaneity connector very common in press and essay writing: after stating one fact, it introduces another that unfolds in parallel, often carrying a sense of consequence or trade-off (economic growth ⇄ environmental cost). It opens the clause and is followed by a comma. Unlike colloquial 同时 or 一边…一边…, it links two processes at the level of discourse, not two actions of a single person.

Examples

经jīng济jì快kuài速sù增zēng长zhǎng，与yǔ此cǐ同tóng时shí，环huán境jìng也yě付fù出chū了le沉chén重zhòng代dài价jià。
The economy grew rapidly; meanwhile, the environment also paid a heavy price.
公gōng司sī扩kuò大dà了le规guī模mó，与yǔ此cǐ同tóng时shí，管guǎn理lǐ难nán度dù也yě随suí之zhī上shàng升shēng。
The company expanded; at the same time, the difficulty of managing it rose accordingly.
科kē技jì带dài来lái便biàn利lì，与yǔ此cǐ同tóng时shí，也yě引yǐn发fā了le隐yǐn私sī的de担dān忧yōu。
Technology brings convenience; meanwhile, it also raises privacy concerns.

Levels are indicative: they follow the standard Chinese Grammar Wiki (AllSet Learning) progression, not an official HSK 3.0 mapping. We never assign levels by eye.

This point and the other 370, with audio on every example, inside Wanyu.