他似乎很健康： He appears (to be) healthy; he appears fit and fine; it appears that he is healthy; appear+(to be) + 形容词 这种结构中，to be 可以省略。希望能帮到你
by far so far as far as 三个的区别.加个造句. appear look seem 三者在似乎 好象意思上的区别.各造个句. it t