pocketknife/ˈpɑː.kɪt.naɪf/名词袖珍折刀My grandfather always kept a trusty pocketknife with him for quick fixes and tasks on the go.我的爷爷总是随身携带一把可靠的口袋刀,用于快速修理和处理随时出现的任务。想跟读,去练习