It's certainly a good idea to sit down and do your homework before you look for outside help.

在求助外援之前，坐下来，先做好自己的功课当然是一个很好的想法。

youdao

A: "you can never be too careful" means it's good to spend as much time as possible to do a careful job to make it your best job when it comes to school homework or your office.

“再细心也不为过”的意思就是：不管是老师布置的家庭作业还是公司老板下达的任务，尽可能花更多的时间保证自己所做的是最棒的。或者是说，你在保护家庭或是自身安全时，再细心也不为过。

youdao

So he said, "Only if you do all my homework 'til the end of the semester, that's 35 days. If you do a good enough job, I could even get A's."

于是他说：“那好吧，只要你帮我做完这个学期的家庭作业，一共35天，我就放了你。

youdao

"His view of life has always been, 'If you do a good job, if you really do your homework, if you're thorough and intelligent about how you handle these tasks, it speaks for itself, and the rest will take care of itself, '" Pachios says.

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