I have been a selfish being all my life, in practice, though not in principle.
文学的价值在于它能够让我们体验他人的生活,从而更好地理解自己。
可持续性不是流行语,而是水产养殖唯一的前进道路。
The best businesses are those that solve real problems for real people.
化学是一门研究物质性质及其变化的科学。
The first sentence of the novel is the most important, but the last sentence is the one that stays with you.