常见例句用作名词 (n.)What he said is a pure hypothesis.他所说的纯粹是假设。Soppose you should contradict yourself,what then?假设你说了，那又怎么样呢？用作形容词 (adj.)That left a question of what the ancestor of the arthropods looked like.许多学者据现有的线索，提出节肢动物理论上假设的祖先，但结果很不一致。 返回 what-if