Lactase deficiency

乳糖酶缺乏

🧩 词语组成解析

lactase
n. 乳糖酶\\n[化] 乳糖酶
deficiency [dɪ'fɪʃənsi]
n. 缺乏,不足;缺点,缺陷;不足额;
de不+fic做+iency表名词→做得不够→ 缺陷

🗣️ 情景例句

She grabbed the chance to travel abroad.
她抓住机会到国外旅行。
It was a real pleasure for me to do it.
我很乐意这样做。
It was a Sunday in May. My brother and I had decided to go off for a long walk while we were staying with my grandparents in the French countryside.
5月的一个星期天,我和弟弟决定去远足。当时我们住在法国乡下的祖父母家中。
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