| 不敢旁鹜 dare not disperse one's atte... |
| 不敢正视 dare not look in sb.'s face |
| 不敢自伐 daren't be proud of oneself |
| 不敢苟同 beg to differ |
| 不敢说半个不字 dare even mutter dissent |
| 不敢越雷池一步 dare not go one step beyond ... |
| 不敢造次 do not venture |
| 不敢问津 be beyond the means of... |
| 不敢隐瞒 dare not conceal the truth |
| 不敢领教 too bad to be accepted |
| 不整合 unconformity |
| 不整合圈闭 unconformity trap |
| 不整子囊菌 plectomycete |
| 不整形晶体 allotriomorphic crystal |
| 不整齐 irregular |
| 不整齐性 irregularity |
| 不整齐花 irregular flower |
| 不整齐萼 irregular calyx |
| 不文不武 versed neither in polite let... |
| 不料 unexpectedly |
| 不斩不奏 neither do sth. nor report |
| 不断 ceaseless |
| 不断前进 march on without cease |
| 不断发展 uninterrupted growth |
| 不断增加 escalation |