Weeksite
n. [礦]水硅鉀鈾礦
??? 情景例句
How long will it take for my mail to reach its destination?
我的信件到達目的地要多久？
She's been a bit under the weather recently.
她近來身體不太好。
But the historian attempting to reconstruct the distant past is always faced with a difficult task.
但是，歷史學家企圖重現遙遠的過去可是一項艱巨的任務，