be getting/running low
短缺；不足
The gas is running/getting low.
油快没了。
We're running low on food; I'm going to get some at the supermarket.
食物快吃完了，我等会儿去超市买些回来。

A: Let's stop for a rest, I'm exhausted.
咱们停下来休息一会儿吧，我累坏了。
B: Me too. I also need to apply some insect repellent and drink some water.
我也是我，还需要涂点防蚊液，喝点水。
A: What an amazing view. The scenery is so spectacular.
好美的景色啊，这景色真是好壮观。
B: Yeah, I wish we could do this more often. No bosses to tell us what to do and no deadlines to meet.
是啊，真希望我们能够常出来走走。这里不会有老板叫我们做东做西，也不需要赶期限日。
A: Hey, is this your favorite hiking trail?
嘿，这就是你最喜欢的步道吗?
B: Nah, I prefer difficult trails that are steep and challenging. This one is too easy for my liking.
不是，我偏好难度高的。陡峭，有挑战性，这条步道对我来说太好走了。
A: I'll check the map to see if there is a stream up ahead. I'm getting low on water.
我看看地图，确认前方是不是有条溪流。我的水快喝光了。
B: Okay, hey, what time did you tell the ranger we would be back by?
好的，嘿，你跟森林管理员说我们几点回去？
A: Six o'clock——that's an hour before sunset。
六点——日落前一小时。
B: Then we should head off. Otherwise, we'll be late.
那我们该掉头回去了，不然我们会来不及了。