常見(jiàn)例句Special Design of Block Post Signal 線路所信號(hào)特殊設(shè)計(jì)I am afraid the last post has been dispatched. 恐怕末班郵件已經(jīng)發(fā)出了。A red light is usually a signal of danger. 紅燈通常是危險(xiǎn)的信號(hào)。All bookings must be made by post. 所有預(yù)約都必須用信函形式。By parcel post our samples were sent. 我們的樣品是通過(guò)郵包寄送的。No one can alter the fact, ex post facto. 沒(méi)有人能在事后改變事實(shí)本身。 返回 post-signal