生化需氧量 Save Sign in to save words shēnghuàxūyǎngliàng ㄕㄥ ㄏㄨㄚˋ ㄒㄩ ㄧㄤˇ ㄌㄧㄤˋ biochemical oxygen demand BOD environmental science Character by character 生(shēng)grow 化(huà)make into 需(xū)require 氧(yǎng)oxygen 量(liàng)capacity A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0