mechanical device attached to an elevated structure; rotates freely to show the direction of the wind
例句
用作名词 (n.)
In winter the weather vane often freezes up. 气象风向标在冬季经常僵立不动。
Going through hardships and tribulations ,the tennis clothes turned into a popular wind vane as its profond history and its keen fashionable trend. 经过百余道年轮的打磨，如今的女子网球服以其深厚的历史底蕴和敏锐的时尚气息成为了一种流行风向标。
美
