比如说，如果第四颗葡萄很酸，那么四月份可能有点坎坷。
So, for instance, if the fourth grape turns out sour, then April might just be a little rocky.
火星是太阳系中的第四颗行星，以罗马战神马斯的名字命名。
Mars is the fourth planet from the sun in our solar system and is named after Mars, the Roman god of war.
火星-太阳系八大行星的第四颗行星，介于地球与小行星群之间。
Mars - Fourth planet solar system eight planets, asteroids between the Earth and between groups.
第四颗行星介于尼克斯和许德拉的由哈勃望远镜在2005年确定的轨道之间。
The fourth moon sits between the orbits of Nix and Hydra, which Hubble identified in 2005.
不幸的是，上颚的第四颗前臼齿很大，看起来就象是下颚的第一颗臼齿，这颗前臼齿也被称作叫裂齿。
Unfortunately, the fourth premolar in the upper jaw is quite large and looks like the first molar in the lower jaw; it is known as a carnassial tooth.
第四颗行星被另一个科研小组于2004年发现，它有着地球十倍的质量，而且是与那颗已知恒星距离最近的。
A fourth object, which has more than ten times the mass of Earth and is the nearest to the star yet found, was noticed by another team in 2004.
Meridian4号卫星是俄罗斯正在发射的一系列军用卫星中的第四颗，被用来替代日渐过时的Molniya系统。
The Meridian 4 satellite is the fourth in a series of military satellites being launched by Russia to replace the ageing Molniya system.
哈勃太空望远镜最近发现了第四颗绕行冥王星的卫星。天文学家们暂时把它命名为P4。该是迄今为止发现的围绕这颗冰雪覆盖的矮行星的最小的卫星。
Hubble recently showed a fourth moon orbiting Pluto. Astronomers temporarily named it P4. The moon is the smallest to be discovered around the icy dwarf planet.
四颗全都在几兆英里之外，其中三个围绕同一恒星周围轨道运行，第四个围绕另一颗不同的恒星运行。
All are trillions of miles away - three of them orbiting the same star, and the fourth circling a different star.
地球是这四颗行星中最大的一颗，它比第一、第二和第四行星都大。
The Earth is the biggest of the four planets. It is bigger than the first, second and fourth planets.
地球是这四颗行星中最大的一颗，它比第一、第二和第四行星都大。
The Earth is the biggest of the four planets. It is bigger than the first, second and fourth planets.
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