That is one hard truth.It's hard to put a leash on a dog once you've put a crown on its head.
技术可以成为我们减少误捕和保护海洋生物多样性的最大盟友。
过去是一个异国他乡;他们在那里做不同的事情。
The only way to learn mathematics is to do mathematics.
随着年龄的增长,我越来越意识到唯一重要的是忠于自己。