Part 1

1，So I guess Dad's still waiting for me to live up to my potential.

Live up to：to be as good as expected or promised

The most important point is live up to agreement

2，This was the first summer the coach let us boys wear swim trunks instead of those skimpy racing trunks. But Mom said Rodrick's hand-me-down bathing suit was “prefectly fine”

Hand-me-down=Cast off：some clothes which have been used by others

Linda really hates to wear hand-me-down skirts from her sister

3，That's how I spent a pretty big chunk of my summer vacation. And that's why I'm actually looking forward to going back to school tomorrow

Chunk of：a large amount of something

Jame won a big chunk of money in the game

Part 2

The problem with the Cheese Touch is that you've got it until you pass it on to someone else.But nobody would even get within thirty feet of me，so I knew i was gonna be stuck with the Cheese Touch for the whole school year.

The problem with sth is that...可以用作固定句式

例句（经济学人）：The problem with that approach is that when looters are chased，they split up and police resources are dissipated.

Pass on 固定词组搭配 传递也有去世的意思

Be stuck with 固定词组搭配 无法摆脱

The problem with the phenomenon is that Tom was stuck with the passed on of his pet

Part 3

It was really a bad day in my life. I should finish 2 reports this weekend. When I was trying my best to catch the deadline,the computer was broke down. I was really crazy because I had not saved it. Then, after I went to the computer repair shop, the problem with computer is that it should be rebuild. And, unfortunately, I lost all of my words. The most valued thing l learned is to make a habit to save regularly .