drop-down section跌水: head fall; water fall; drop; ...段: section; segment; part; para ...跌水: (突然下降的水流) head fall; water fall; drop; hydraulic drop滴水段: abtropfstrecke静水段: quiet reach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:跌水段，即可在微信中查询翻译
