这些代表保证系好安全带和戴上摩托车头盔，并避免超速和饮酒驾驶。
The delegates pledge to wear seatbelts and motorcycle helmets and to avoid speeding and drink-driving.
TrES - 2b甚至可能代表了一类全新的外行星——基平和同事们希望用开普勒对这一可能性进行测试。到目前为止，开普勒已经在太阳系外发现了几百颗行星。
TrES-2b may even represent a whole new class of exoplanet-a possibility Kipping and company hope to put to the test with Kepler, which has so far detected hundreds of planets outside our solar system.
括地球在内）都沿着轨道绕着太阳公转。 这代表太阳系平面，学名“黄道”。
the planets, Earth included, orbit around the sun on this celestial sheet.
应用推荐