1. be on duty 值班,值日,在上班时- ~+ j1 e3 R5 r
2. distinguish between (=make or recognize differences) 辨别 & Z* l! y S' s 3. distinguish…from 把…与…区别开( m" w A. W/ q' p* ^4 b+ _2 t9 z
4. do away with(=get rid of;abolish;discard eliminate)除去,废除,取消;do away with (=kill)杀掉, 镇压: i; L" b% F8 i: o. r
5. have…to do with 与…有关系 0 H1 z5 k) O7 A& p' P7 e 6. without doubt (=undoubtedly)无可置疑地# B$ R5 C G" f; R) Z4 D, T
7. in doubt(=in a condition of uncertainty)对…表示疑惑- U$ b* ~4 n8 h$ U" Z
8. be due to 是由于 + t) T0 ]3 q( R6 w% a& K3 s% n$ Q 9. come off duty 下班; [; K2 R4 V7 H1 s6 U+ _2 |; I2 j( I
10. go on duty 上班