疯

疯 [fēng] 形

1. ■ （神经错乱; 精神失常） mad; crazy; insane:

发疯 become crazy;

到这样薄的冰上溜冰， 你真是疯了。 It was crazy of you to go skating on such thin ice.

他完全疯了。 He was stark mad.

2. ■ （指农作物生长旺盛而不结果实） (of plants and crops) spindle:

疯枝 fruitless branches