HSK 7–9 grammar · conjunction
⋯⋯，以⋯⋯
⋯⋯，以⋯⋯ — in order to (formal)
Pattern
+
( ) can be left out · other words may come before, between and after
How it works
This 以 introduces the purpose an action serves: "so as to…". It is written-style and compact — the spoken equivalent would be 为了 placed before the action instead of after it.
Examples
请提前报名，以便安排座位。
Qǐng tíqián bàomíng, yǐbiàn ānpái zuòwèi.
Please register in advance so that seating can be arranged.
公司加强培训，以提高服务质量。
Gōngsī jiāqiáng péixùn, yǐ tígāo fúwù zhìliàng.
The company is stepping up training in order to improve service quality.
Related
⋯⋯，以免/免得⋯⋯ · ⋯⋯，以免/免得⋯⋯ — so as to avoid, lest以便 · 以便 — so that / in order to为的是 · 为的是 — the aim being to
See it in a story
In the app, ⋯⋯，以⋯⋯ is underlined wherever it appears in the stories you read, and practised with sentences from them. Free.