Hematolith
血管石, 血管壁結石
??? 情景例句
There has been very little progress this term.
這學期沒有什么進步。
Would Dr.Block be able to see me at 9:30 tomorrow?
明天9點半布洛克醫生能給我看病嗎？
it is not always safe by the time it reaches the tap.
等水到達龍頭時就不一定總是安全的了。