when I talked a joke to them,they couldn't help l_____
问题描述：
when I talked a joke to them,they couldn't help l_____
答
laughing
could/can not doing
答
laughing
答
can't help doing sth. 忍不住作某事。
答
when i told a joke to them, they coulnd't help laughing.
答
laughing
can't help doing sth.
情不自禁作某事
答
laughing,大笑