spare dike备用: reserve; spare; alternate; b ...堤: clear用堤围起: embank备用: reserve; spare; alternate; backup; standby application; standby备用的；备用品；备用设备: stby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:备用堤，即可在微信中查询翻译
