单词	Are they birds
释义	Are they birds 它们是鸟吗？
随便看	straight-tooth column gear straight toothed spur gear straight-toothed spur gear straight tooth end mill straight tooth gear straight-tooth gear straight-tooth milling cutter straight top straight top boiler straight tops straight top vest straight torque-controlled pneumatic wrench straight torso Straight to the Heart Posted straight-to-the-point straight-to-video straight tower straight track straight trade straight trailing edge straight transfer straight transilluminator Straight trees have crooked roots straight triangle straight truck