例句與造句

1. Mocchegiani et al . suggest that with aging, the total thymulin was constant throughout the process of aging, with the only difference in the disappearance of active thymulin at earlier stages . ( 4 ) The involution of thymus supports the idea that alteration in the hormone-metabolic state of aging.
2. It's difficult to find involution of thymus in a sentence. 用involution of thymus造句挺難的