[yǐ biàn]
so that; in order to; so as to; with the aim of; for the purpose of
They flew there in order that they might be in time to attend the opening ceremony.
他們飛往那里以便能及時參加開幕典禮。
The plant requires nitrogen in order to make proteins.
植物需要氮以便制造蛋白質。
Bring it nearer so that I may see it better.
把它拿近點，以便使我看得清楚些。