Microcylinder
微柱体
🗣️ 情景例句
I know it's sudden, Robbie,
我知道这件事很突然， Robbie。
Would you mind mailing this letter for me?
你能替我寄这封信吗？
People said gold could easily be picked up by washing sand from the river in a pan of water.
据说，在一盆水里淘洗可沙就很容易找到金子。