应铃用 yīng líng yòng

DEFINITIONS

  1. should be notified for use; must be used with notification

See also: yìng líng yòng

CHARACTERS

应 yīng
HSK 3
should, ought to, must
铃 líng
HSK 5
bell
用 yòng
HSK 3
use, employ, apply, operate; use