astronomy astronaut astronomer religion religious violent violently violence harmful harm harmless exist existence biology biologist physicist physics physical system violent theory exist floated harmful gentle puzzled Thus crashed in time lay eggs give birth to in ones turn prevent.from.block out 感到高兴；感到振奋感到高兴；感到振奋 既然既然 熟悉；掌握；理解熟悉；掌握；理解 爆发；突发爆发；突发 密切注视；当心；提防密切注视；当心；提防 太阳系太阳系 What is known to us is that whether you will take part in her birthday party or notis to get to made it a condition twice as much as his 单词多维演练单词多维演练 .选词填空选词填空
