Substituent
高中 Senior Highn. 取代基, 代替物\\na. 取代基的, 代替物的
🗣️ 情景例句
I know the house.
我熟悉这房子。
I've never read a more exciting story.
我没有读过比这更振奋人心的故事。
The petrol had nearly all been used up.
汽油几乎已经用光。