双语例句原声例句
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灶神星的大小(直径大约是520公里)和密度使得该星足够大到其引力可将它大体维持成球状，就像一个真正的行星一样。
Vesta's size (it is around 520km in diameter) and density make it massive enough for its gravity to keep it roughly spherical, like a proper planet.
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它被压成一个紧实的半球状，虽然看起很小，但有250克！
It's packed very tightly into a ball, and it weighs 250g even though it looks pretty small!
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一种仙人掌类植物，尤指仙人球属和刺仙人掌属，有多刺的茎，成不分支的球状或圆柱状。
Any of several cacti, especially in the genera Ferocactus and Echinocactus, having unbranched, globular to columnar, ribbed spiny stems.
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And this dimple is later forming a vesicle, a round ball, that goes on and forms the ear.
随后形成一个圆球状的泡囊，直至发育成耳朵。
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