a. 快的, 迅速的, 敏捷的, 灵敏的, 急速的
adv. 快
n. 新长出的肉, 要害, 核心, 感觉敏锐部位
英文释义
n. any area of the body that is highly sensitive to pain (as the flesh underneath the skin or a fingernail or toenail)
s. accomplished rapidly and without delay
s. apprehending and responding with speed and sensitivity
s. easily aroused or excited