• 天黑以前

beforeness先前存在的条件beforeconj.在 ... 以前pref.在 ... 以前；在..前面adv.以前；以往；之前Before validation policy先验证策略before test and analysis分析检验前before the market closes在收市前Before only equips in.以前只装备在中里。before the Christian Era公元前before-separation cost分离前成本Before the Pope is dying赶在教皇驾崩之前before you can say knife突然before and after diagram之前和之后的图式before one can say knife一下子

1. Hopefully, we'll arrive before dark.
   我们可望天黑以前到达。
2. Try to get home before dark.
   尽量在天黑以前回家。
3. If everything goes according to plan, I shall be back before dark.
   假若一切顺利，我天黑之前就回来。
4. He was pounding away at the job so as to finish it before dark.
   他在拼命地干，以便在天黑前把工作做完。
5. I had better hit the road if I'm to be back home before dark.
   如果我要天黑前到家，我最好现在就动身。
6. We started early in order to arrive before dark.
   为了在天黑前到达，我们很早就动身了。