Prepared chalk
[醫(yī)] 精制白堊, 沉淀碳酸鈣
?? 詞語組成解析
prepared
[[pri'pe?d]]
a. 準(zhǔn)備好的, 特制的
chalk
[t??k]
n. 粉筆，白堊;用粉筆畫的記號;〈英〉（比賽）得分紀(jì)錄，記入借方的款項;〈美俚〉牛奶;
v. 用粉筆寫（記下）;用白堊粉擦（桌球桿等）;使蒼白;（英）把（酒錢）記于（某人）賬上;
chalk(lime石灰)→白堊；粉筆；粉筆做的記號；用粉筆寫
??? 情景例句
All window seats are sold out.
所有靠窗口的位子都賣光了。
Do not swap horses when crossing a stream.
處在危難中，不宜大更動。
Sure, I'll be glad to take care of it for you.
好的，沒問題，樂于為你服務(wù)。