名詞 hypothesis:

1. a proposal intended to explain certain facts or observations
   同義詞：hypothesis
2. a tentative theory about the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena
   同義詞：hypothesis, possibility, theory
3. a message expressing an opinion based on incomplete evidence
   同義詞：guess, conjecture, supposition, surmise, surmisal, speculation, hypothesis

1. People have propose all sort of hypotheses to explain why dinosaur have become extinct.
   人們提出種種假設(shè)，試圖說明恐龍為什么會(huì)滅絕。
2. A hypothesis admits by its nature of being disputed.
   既然是假定，就有爭(zhēng)論的余地。