contra angles for slip-joint connection滑: slippery; smooth节: joint; knob; node连接体: connector用: 40分钟跑完全程 run the course in 4 ...反: reverse side下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:滑节连接体用反角机头,即可在微信中查询翻译