Monocell
单电池
🗣️ 情景例句
then go uptown to the Museum of Natural History.
然后再往北去自然历史博物馆。
Aren't they students?
他们不是学生吗？
One is the general atmosphere of secrecy in which it is carried out,
一是科研工作中普遍存在的保密气氛；