Often Quite A Lot

People who have spent a lot of time in contact with animals often develop animal-induced allergies, some of them quite serious.

与动物接触过很长时间的人通常会患上对动物过敏的疾病，其中一些还很严重。

People who have spent a lot of time in contact with animals often develop animal-induced allergies, a significant percentage of which are quite serious.

与动物接触过很长时间的人往往会患上动物过敏，其中大部分是相当严重的。

I lack patience quite often and expect a lot of my kids. I sometimes can't wait for the day to end so I can put them to bed and just have a quiet house.

我对我的孩子们尤其缺乏耐心，我有时为了保持房子里的安静，我甚至都没有耐心等到一天结束就急急忙忙把孩子们赶上床去。