post-signal

常见例句

• Special Design of Block Post Signal
  線路所信號特殊設計
• I am afraid the last post has been dispatched.
  恐怕末班郵件已經發出了。
• A red light is usually a signal of danger.
  紅燈通常是危險的信號。
• All bookings must be made by post.
  所有預約都必須用信函形式。
• By parcel post our samples were sent.
  我們的樣品是通過郵包寄送的。
• No one can alter the fact, ex post facto.
  沒有人能在事後改變事實本身。
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