laugh/lɑːf $ læf/

v. make a sound with your throat when you think you are happy or sth is funny

n. the act or sound of laughing

v. [I] 笑，大笑：[laugh about (或at) sth] No one laughed at his joke. 没人被他的笑话逗笑。

◇She burst out laughing. 她突然大笑起来。

n. [C] 笑；笑声：He gave a loud laugh. 他大笑一声。

◇He reacted with a laugh. 他的反应是大笑一声。

laugh at sb 嘲笑：His classmates laughed at him when he wore that cap. 当他戴那顶帽子时，同学们都嘲笑他。

用法laugh常作可数名词，laughter常作不可数名词。

用法He burst out laughing. = He burst into laughter. 他突然大笑起来。

谚语He laughs best who laughs last. 谁笑到最后，谁笑得最好。