Microcollar
微动轴环
🗣️ 情景例句
A large number of American radio stations operate in the red.
许多美国电台亏损经营。
Children learn to creep ere they can go.
孩子要走路，先得学爬行。
Foreign countries can send their programmes to the other side of the world.
外国一些国家能把它们的节目传送到中国。