Jack-knives
n. （随身携带的）大折刀；镰刀式跳水 (jackknife的变形)
🧩 词语组成解析
jack
[[dʒæk]]
n. 插座, 千斤顶, 男人\\nvt. 抬起, 提醒, 扛举, 增加, 提高, 放弃\\na. 雄的\\n[计] 插座
knives
[[naivz]]
pl. 刀子
🗣️ 情景例句
Is there a station near here?
附近有地铁站吗？
They're calling your flight now.You barely have time to make it.
他们正在定航班。你刚刚有时间做。
You're working hard, George.
你干得真辛苦，乔治。