For centuries, the Chinese had used kites to test the winds before setting sail in a ship.
For centuries, the Chinese had used kites to test the winds before setting sail in a ship.
之后的几个世纪，中国人在航海中使用风筝来测量风向—设定船帆的方向。
For centuries, the Chinese had used kites to test the winds before setting sail in a ship.
之后的几个世纪，中国人在航海中使用风筝来测量风向—设定船帆的方向。