They walked in file.的相關資料：
臨近單詞
they themselves
they
They have badly been outpaced.
They're tarring the lampposts.
They have their house rebuilt.
They insist on solved problem.
They knocked off at nightfall.
they are both equally obscene.
They keep hitting net-balls.
They compiled an encyclopedia.
They welcomed me with flowers.
They dealt with him leniently.
