1) He didn't go on account of his illness.
他因病未去。
2) What brought on the illness is not clear.
病因未详。
3) Why doesn't he go to see a doctor ?
他干吗不去看病?
4) He is absent because he is ill.
他因病缺席。
5) He was confined to bed by illness.
他因病卧床。
6) He went to Japan on business.
他因公去日本。
补充资料：他们
1.代词。称自己和对方以外的若干人。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条