在境况最好的时候，重新开始锻炼身体也可能是一项挑战，但如今许多人都无法去健身房或参加面授的健身课程，就更是连从何处入手都很难知道。

Getting back into exercise can be a challenge in the best of times, but with gyms and in-person exercise classes off-limits to many people these days, it can be tricky to know where to start.

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一开始，兄弟俩都很难过，但完成任务后，他们感到自豪，父亲也为他们骄傲。

Both brothers were so sad about the job at first, but after completing the task, they felt a sense of pride, and so did their father.

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“在刚开始的日子里，让海豚适应我们都很难，”她说。

“In the early days, it was hard to get the animals comfortable with us,” she said.

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It's just hard to keep track of them at first but they all generally mean the same thing, provide additional input to this program called GCC by just specifying it on the command line.

刚开始是很难理解这些词的,但其实都是一个意思，所以，只要在命令行上为这个程序,再添加一个名曰GCC的输入就OK啦。

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