a. sudden 突然的，即刻的。
△ Wiv.4.5.2: “brief,short,quick,snap.”要简，要短，要快，要干脆。
snap
vt. bite suddenly 猛咬。
△Ado.5.1.115:“We hadliked to have had our two noses snapped off with twoold men without teeth.”我们两个人的鼻子差一点被两个缺牙的老头子给咬掉了。
～ vi.
snap at: aim at with the teeth,bite suddenly 对准去咬，猛咬。
△2H.IV.3.2.359 (330):“If the young dacebe a bait for the old pike,I see no reason in the lawof nature but I may snap at him.”i. e. If the greatfish eat the small,by the same law of nature Shallowis my destined prey. 既然小鲦鱼常常成为老梭鱼的点心，按照这种自然法则，我看不出有什么理由不可以咬他一下子。
snap[snæp]
n.&v.甩腕，用快照拍摄，快照adj. 仓促的
◇ in a snap立刻
snap out of it摆脱某种情绪
the snap of a twig树枝的折断声
‖ snap check突击检查
snap down甩腕，摆动腿压栏
snap down the foot突然迅速落脚
snap down with the wrist甩腕扣球
snap hook背带装具弹扣
snap of wrist甩腕
snap pass手腕传球，腕力急传
snap ring扣环
snap roll快滚
snap sampling突击抽样
snap shackle弹簧钩
snap shooter快枪射击手
snap shot急射，弹射
snap throw甩腕急传球snap up屈伸起，抢购
snapping motion突然动作，爆发动作
snapping off the hurdle迅速下栏
snapping over the hurdle迅速过栏
snappy pass点接传球
snapback n.（中锋）突然将球踢回，中锋
snappoll n. 即席调查
snapshot[ˈsnæpʃɔt]n. 简单印象
snapshots n. 快照