Trekker
背包客
🗣️ 情景例句
My boss does everything by the book.
我们老板一切照章办事。
What shall I send him for his birthday?
我要送他什么东西作为生日礼物？
All this was comparatively slow until, with the coming of science, the tempo was suddenly raised.
所有这些发展都比较缓慢，而随着科学的到来，增长的速度才突然加快。