1. hit hard 的意思是使受到沉重的打击，使…遭受严重的挫折。

The company was hit hard by the recession.

公司深受经济萧条的影响。

2. hash sth out 的意思是“和其他人协商共同达成”，主要用在美式口语里面。

You two hash out the details of the presentation.

你们俩一起商量一下报告细节。

3. outgrow 本意是指长大而穿不下(衣服)：

My seven-year-old got new shoes in April, and he's already outgrown them.

我7岁的儿子4月份刚买了双新鞋，现在已经穿不下了。

也比喻“因长大而对…失去兴趣”。

The girl may or may not outgrow her interest in fashion.

那个女孩可能会，也可能不会因长大而失去她对时尚的兴趣。