the American businessman had signalled to the French manager.为什么用signalled?不用signal?

the american family THE AMERICAN PEOPLE怎么样 the Great American rt 美国人 THE AMERICAN怎么样 THE QUIET AMERICAN怎么样 The Sino-American elationship the industrial revolution of American the cause of American Revolution? what's the american dream What is the American Dream? The apples are from-------------- (American). what is the American values the American可不可以表示美国人 THE AMERICAN BOOK CENTER怎么样 Whats with the American terms? ----American boy (a/an/the) a piece of the American power of the American president