Handstone
鵝卵石, 用手操作的碾磨石
??? 情景例句
Could I trouble you with something for a moment please?
請問可以麻煩你一下嗎？
The first blow is half the battle.
頭炮打響，等于半個勝仗。
OK. Please sit down over there.
好，請坐吧！