what-if单词基本解析：

n.假设分析，作假定推测
n. 假设 adj. 假设的, 假定的
n.假设分析，作假定推测；

what-if变化用词：

what-if英英释义：

What If"What If"is the fourth single released by Jason Derulo on his self-titled debut album. The single was first released in the UK on July 26, 2010, where it peaked at number 12, marking Derulo's fourth consecutive Top 20 hit in the country.

以上来源于:Wikipedia

what-if中文词源：

what-if用法和例句：

what-if

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。

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