根据英语解释写出相应的单词
Someonewhostudiesorworksinbiologytheforcethatcausesomethingtofalltothegroundortobeattractedtoanotherplanetthetypicalweatherconditionsinapartieulcsareaverydifficulttobelieveandthereforeprobablyuntrueathinpapercoverinwhichyouputandsendaletter共五句五个单词
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