Acetyls
(acetyl 的復數) n. 乙酰(基)\\n[化] 乙酰; 乙酰基
??? 情景例句
and it is on a half-acre lot.
用地半英畝。
Idle people (folks) have the most labour (take the most pains).
懶人做工作，越懶越費力。
These bags are heavy.
這是些重的盒子。