例句與造句

1. While at sea the officer should keep a proper lookout and checj ship ' s position at times
   航行中，駕駛員應(yīng)保持正規(guī)了望，并經(jīng)常核對(duì)船位。
2. It's difficult to find proper lookout in a sentence. 用proper lookout造句挺難的