Leucopoenia
白血球減少
??? 情景例句
You've been a great help.
你幫了大忙。
My brother took lessons on the trumpet for nearly ten years.
我的兄弟有將近10年的時間聽小號的課了。
I wrote: Best wishes for Teachers' Day!
我寫道：“謹致以教師節的良好祝愿！”