Sfc
[化] 超臨界流體色譜法
?? 醫(yī)學釋義
脊髓液細胞計數(shù)
??? 情景例句
We will also need a letter of recommendation.
我們還要求一封推薦函。
No man learns but by pain or shame.
不經(jīng)痛苦羞辱，難以取得教訓。
he had great difficulty in controlling the car because a tyre burst during the first run.
但他很難把汽車控制住，因為在開始的行程中爆了一只輪胎。