Ketone ester
[化] 酮酯
?? 詞語組成解析
ketone
['ki:to?n]
n. 酮;
n. 酯\\n[化] 酯
??? 情景例句
Absolutely.
絕對是真的。
All our garments are now poly-cotton, which is stronger, needs little ironing, and allows variations in patterns.
現在我們的服裝都是滌棉料的，質地堅韌，不用熨燙并且花樣繁多。
No, more, about 130 years ago. Most of the slave owners were rich farmers who lived in the south. They wanted to keep their slaves.
不，還要早，大約130年前。大多數奴隸主都是住在南方的富有的農場主。他們想保留自己的奴隸。