Oxygen is often used as reactant in chemical processes.在化学过程中,氧气经常充当为反应物.The synthesis and application of reactant polyurethane fixing agent were introduced.介绍了反应性聚氨酯预聚树脂固色剂的合成及其应用.The influence of reacting temperature a...
Her assistant was accused of theft and fraud by the police.她的助手被警方指控犯有盗窃和欺诈罪。"He's been arrested for theft and burglary." — "Good grief!"“他因为偷窃和入室盗窃而被逮捕了。”——“我的天哪！”Secret investigations have netted ninety staff susp...