铅是早在古代就已知的金属之一。Lead was one of the metals known to the ancient world.水银是一种已知的有毒物质。Mercury is a known poison.人们通常从已知的事实中推断未知的事实.People usually infer an unknown fact from a known fact....
The abdomen is diffusely tender.腹部有广泛压痛.Sometimes, fibrocystic changes produce a more diffusely lumpy breast.有时纤维囊性变导致乳腺更多的肿块出现.They are diffusely used in hotel , bar , swimming pool.并承担国内诸多品牌的墙地砖配套业务....
Pencil, Sharpener, Keychains, Bath Buddies , Toothbursh Holder, Nail Brush, Computer Accessories Stationery.采购产品铅笔, 研磨者, 钥匙链, 烛台, 钉子刷子, 计算机,配件文具.B : My pencil is blunt. May I use your pencil - sharpener?我的铅笔秃了, 我能用一下你的削笔...