词汇	chemical group composition
释义	chemical group composition 化学族组成
随便看	The first phase of C3 went live in early 1997 The first phase ratio the first-phase training the first philosophy the first pin segment the first place The first player to use the first point the first point of discontinuity the first point of Libra The first point scored in tennis after deuce the first polar body the first pontes the first post the first predicate the first premolar extraction the first presages of winter The first president The first pretty girl he saw turned his head the first-price sealed auction the first principal the first principal component The First Sense of Sorrow the first series the first principle