Before riding a horse on the road, make sure you can control it in traffic.

Riding a horse as a means of transportation.

骑马来当作交通工具。

The art and practice of riding a horse.

骑马术骑马的艺术与技艺。

You're not riding a horse, just take it easy.

你不是在骑马，放轻松

Next to riding a horse, I like swimming best.

除骑马之外，我最喜欢游泳。

You would think after all these years of riding a horse

还以为男人骑了几百年的马

There are many places to go on safari in Africa, but riding a horse through the flooded waters of Botswana's Okavango Delta must rank as one of the world's most exciting wildlife journeys.

在非洲有许多地方可以进行游猎，但骑马穿越位于博茨瓦纳的奥卡万戈三角洲的洪泛地区一定是世界上最令人兴奋的野生动物之旅之一。

I saw a girl riding a horse

我看见一个骑马的女孩。

However, the small cosmological constant and cosmic coincidence problem cannot be resolved within the known laws of physics, which is the famous cosmological constant problem in physics and astronomy.

然而现有物理学理论还无法给出合理的解释，因此宇宙学常数问题成为物理学和天文学上最重大的疑难之一。

But it was physics and chemistry, not astronomy, that he was really savoring.

不过他真正品尝的不是天文学，而是物理和化学。

Today biology, chemistry, geology, physics, and astronomy all use the same conceptual organization of matter.

今天，生物学、化学、地质学、物理学和天文学都使用着同一个关于物质的概念结构。

Besides interactive experiences, the museum will also exhibit many rare items, including a first edition copy of the first English translation of Isaac Newton's Mathematical Principles of Natural Philosophy-which laid the foundation of modern physics and astronomy. It was published in 1729.

除了互动体验，上海天文馆还将展出许多稀有展品，包括艾萨克·牛顿的《自然哲学的数学原理》第一版英文译本（出版于1729年），这部著作奠定了现代物理学和天文学的基础。

Paul-Antoine Moreau, of the University of Glasgow's School of Physics and Astronomy, said the image was "an elegant demonstration of a fundamental property of nature."

格拉斯哥大学物理与天文学院的保罗-安托万·莫罗说这个图像“优雅地展示了自然的基本属性”。

A study conducted for the particle physics and Astronomy Research Council has outlined proposals for two all-British moon missions.

粒子物理及天文研究会进行的一项研究，规划了英国未来将独力展开两次登月任务。

The ideas of PER and AER are steadily gaining acceptance in physics and astronomy departments nationwide.

在全国范围内的物理学和天文学部门中，PER和AER的观点正在不断地得到认可。

Sometime in elementary school I developed an interest in science, and physics and astronomy in particular.

在小学的某个时候，我对科学产生了兴趣，尤其是物理学和天文学。

Physics and Astronomy: MIT, US 37.

物理学和天文学：麻省理工学院，美国

Compared to physics and astronomy, cosmology is a young science.

与物理学和天文学相比，宇宙学这一学科还较为年轻。

Physics and astronomy are~ sciences.

物理学和天文学是相关联的科学。

We always visit friends who are ill, bearing a large bunch of grapes.

我们总是带着一大串葡萄去看望生病的朋友。

The Sun, with all the planets revolving around it, and depending on it, can still ripen a bunch of grapes as though it had nothing else in the Universe to do.

太阳，虽有众多行星环绕依赖，犹能发散光热使葡萄成熟，仿佛宇宙间并无他事分心。