原油受到了自然产生的分解油类物质的微生物的侵蚀。The oil is attacked by naturally occurring microbes which break it down.防护手套可以减少皮肤对化学物质的吸收。Protective gloves reduce the absorption of chemicals through the skin.pH值测试可检测物质的酸碱度。A pH test measures t...
He is the pink of politeness.他是礼貌待人的典范。She had that inbred politeness, it was a part of her.她拥有那种天生的优雅，举手投足都彬彬有礼。For the first time her veneer of politeness began to crack.她温文尔雅的外表第一次露出破绽。His veneer of politeness conceal...