Centrepin
中心销
🗣️ 情景例句
He always performs his tasks perfectly.
他总是圆满地完成工作。
I'm afraid all my efforts were in vain.
我担心我的努力全白费了。
He waited until the volcano became quiet and he was able to return two days later.
他等到火山平静下来，两天以后又返回去。