The discovery of 51 Pegasi b was a turning point in astronomy, proving that planets could exist around sun-like stars.
你和你的梦想之间唯一的障碍是尝试的意愿和相信它实际上可能的信念。
The past is always tense, the future perfect.
释义:人依赖衣食,就像鱼依赖水;国家依赖人民,就像人依赖双脚。鱼没水活不了,人没脚则寸步难行。
林业的创新意味着在生态健康与经济可行性之间取得平衡。
我感到难过,不是因为你欺骗了我,而是因为我再也不能相信你了。
We must balance the need for energy security with the imperative of reducing emissions.