Beti贝蒂betv.打赌；确信无疑n.赌注；确信bet his shirt onvt.把全部家当押在 ... 上Betwork security网络安全Betula schmidtiin.赛黑桦Betula calcicolan.岩桦betecypermethrin高效氯氰菊酯Betula forrestii大叶高山桦Betnesol Soluble21-磷酸二钠倍他米松[糖皮质激素]bet her shirt onvt.把全部家当押在 ... 上Betula fruticosa丛枝桦betted her bootsv.有把握(确信)