Hexinoic acid
[化] 己炔酸
🧩 词语组成解析
🗣️ 情景例句
but, unfortunately,
但是， 很不幸，
Time works great changes.
时间能产生巨大的变化。
Aunt Harriet lived in that leisurely age when servants were employed to do housework.
哈丽特生活在一个悠闲的年代，家务事都由雇来的佣人代劳。