be active in 积极于 be afraid of 恐怕,害怕,担忧 be alive to 发觉,感觉,对……敏感 be angry at 因某事生气 be angry with 对……发怒 be anxious about 担心,为……担忧 be anxious for 急切盼望,渴望 be anxious to (do) 渴望(做) be ashamed of 为……感到害臊 ...