Circular piston
[电] 圆活塞
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
I don't like to waste my time chatting on the net.
我不想把时间浪费在网络聊天上。
How are you?
你好吗？
That is perhaps why sculpture has been described as the most difficult of all arts;
雕塑被说成是所有艺术中最难的艺术，可能就是这个道理。