We'd better turn back; it's getting dark.是什么意思？

We'd better turn back; it's getting dark.

我们最好还是往回走吧, 天快黑了。

better

adj. 较好的，更合适的，能力更强的，好转的；adv. 更好地，更妥，更；v. 胜过，上进；n. 更好者，更有才智者；

例句
...an opportunity for the leaders to become better acquainted.
增进领导人之间相互了解的机会

turn

v. 使转动，旋转，转身，翻转；n. 转动，转向，转弯处，转变；

例句
The government have not been able to turn today's demonstration to their advantage.
政府未能把今天的游行示威转为己用。

back

n. 背，背部，背面，反面，后面，后部，（椅子等的）靠

例句
He looked back at the abject, silent girl and repeated his question.
他转过头看着这个噤若寒蝉的女孩，又重复了一遍他的问题。

getting

n. 获得（物），利益；v. 得到( get的现在分词 )，抓住，说服，受到（惩罚等）；

例句
Despite considerable pain she has been getting out and about almost as normal...
尽管还很痛，她已经基本上行动如常。

dark

adj. 黑暗的，乌黑的，忧郁的，神秘的；n. 黑暗，暗色，暗处；

例句
In the dark my sense of hearing becomes so acute.
黑暗中我的听觉变得异常灵敏。