Lactase deficiency
乳糖酶缺乏
🧩 词语组成解析
n. 乳糖酶\\n[化] 乳糖酶
🗣️ 情景例句
Now the hard work begins.
艰苦的工作现在开始了。
A rolling stone gathers no moss.
滚石不生苔，转业不聚财。
a ticklish business which is achieved with the aid of two tame elephants roped to the captive on either side.
这是一件棘手的事，需要在它两侧拴上两头驯服的大象才能完成。