acute/əˈkjuːt/
adj.1. 敏锐的; 灵敏的an acute sense of smell灵敏的嗅觉
She still has very acute hearing, though she is eighty years old.尽管她已经八十岁了,但她的听觉仍然很灵敏。
2. 剧烈的;厉害的in acute pain痛得厉害
3. 严重的acute shortage of food严重缺乏食物
4. 急性的(疾病)5. 成锐角的an acute angle锐角
6. 带有撇形(')重音符号的