Jackknife
n. 大折合式刀, 屈体跳水\\nvi. 弯身\\nvt. 用大折刀切
✅ 同义词
🗣️ 情景例句
Well, I've thought a lot about which college,
嗯， 我为了上哪一所大学想了很多，
Buck up, Billy, Enjoy yourself.
振作起来，比利，快快活活地过日子。
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.
历史学家迄今认为日历是随农业的问世而出现的，因为当时人们面临着了解四季的实际需要，