The stream switchback through hills and trees.小河在山峦和树木间蜿蜒流去The road started to turn in bends and switchback.公路变成了那种“之”字形的盘山路.The switchback operation returns the ACTIVE RCSs to the ACTIVE state on their primary AP.恢复切换操作...

hitching的音标：hitching的英式发音音标为：['hɪtʃɪŋ]hitching的美式发音音标为：['hɪtʃɪŋ]...