Actinide
n. [化]锕类
🗣️ 情景例句
Remember, the number 1 train. The uptown platform.
记住，搭一路车，在北月台 。
You have your choice of three flavors of ice cream.
你有3种风味的冰淇淋可选择。
Certainly. But please give it back soon.
可以，但是用完后请及时还回来。