Beta lactose
[医] β-乳糖
🧩 词语组成解析
n. 希腊字母表的第二个字母\\n[医] β(希腊文的第二个字母), 乙种
n. 乳糖\\n[化] 乳糖
🗣️ 情景例句
My dear little boy just looked up at me as if to say,
我亲爱的小男孩只是仰头看着我 ，好像在说，
He is supposed to be there on time.
按理说他应该准时到那儿。
but it was not until 1869,
但直到1869年，