smart

聪明的, 漂亮的, 刺痛的, 剧烈的, 敏捷的, 巧妙的, 伶俐的, 潇洒的

showing mental alertness and calculation and resourcefulness

刺痛, 痛苦

a kind of pain such as that caused by a wound or a burn or a sore

刺痛