Kilobases
(kilobase 的复数) n. 千碱基对（核酸链长度单位）
🗣️ 情景例句
I am exhausted. My new exercise class is so hard.
我太累了。我那新的健身班太难了。
There's something wrong with the phone.
电话出了点儿毛病。
lack of physical and mental energy, both of which are essential in turning out and throwing away, and sentiment.
一是体力，精力均告不佳，这二者是清除无用的东西必不可少的因素；另一原因是感情因素。