Bounded interval
有界区间
🧩 词语组成解析
a. 有界限的
🗣️ 情景例句
Do you hike or fish on your trips?
旅游时，你会步行或钓鱼吗？
I was thirty on my last birthday.
我在我最后一个生日时30了。
After it had passed, they swam on as quickly as they could because they knew that the boat would soon return.
快艇过去之后，他们以最快的速度向前游去，因为他们知道快艇马上就要转回来。