🧩 词语组成解析
genus
['dʒi:nəs]
n. （动植物的）属;类;种;型;
🗣️ 情景例句
when I was about eighteen years old.
那时我差不多十八岁。
All work and no play make Jack a dull boy.
尽量学，尽情玩。
What was the population of the world in 1950?
1950年世界人口是多少？