? 同義詞
??? 情景例句
My pleasure, Son.
不客氣，兒子。
On a crowded train, one comes in contact with many people.
在擁擠的火車里面，會和許多人接觸。
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(xiàn)遙遠的過去可是一項艱巨的任務(wù)，