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- Take bisphenol-A, a compound used to make eerything from computer keyboards to dental sealants to food-can lining. 如雙酚丙烷，一種廣泛應用化合物，從制造電腦鍵盤(pán)到牙科封閉層，再到食品罐頭內層。
- Dental sealants can help provide additional protection against cavities on the chewing surfaces of teeth. The plastic coating is painted on the grooved chewing surfaces of the back teeth. 封牙劑為牙齒的嚼面提供額外保護預防蛀牙。封牙劑通常涂在后面牙齒有溝的嚼面。
- Cook the meat quickly at first to seal in the juices. 一開(kāi)始要大火燒肉，以便保存肉汁。
- The putty gives a good seal round the window. 窗戶(hù)四周泥的油灰密封效果很好。
- Our foil packets seal the flavour in. 我們用錫紙包裝以保持原味。
- This document carries the royal seal. 這份文件上蓋有王室印章。
- The seal on the bottle has perished. 瓶子的封記已經(jīng)腐爛。
- Dental prosthetics involving a bridge or bridges. 用齒橋補牙用一個(gè)或多個(gè)齒橋進(jìn)行牙齒修復
- I had undergone a major dental operation. 我經(jīng)受了一次牙科大手術(shù)。
- He impressed his seal on the wax. 他在火漆上蓋了他的私章。
- The deal needs the government's seal of approval. 這一交易需經(jīng)政府批準。
- Seal (up) the window to prevent draughts. 把窗戶(hù)封起來(lái)以防風(fēng)。
- A round seal affixed to a papal bull. 印璽一個(gè)圓形的教皇的正式宣布訓令或法令的封印
- dental sealant 牙封閉劑
- She forgot to seal her letter before mailing it. 她忘記在寄信前將信封上。
- The experience set the seal on their friendship. 這一經(jīng)歷確定了他們的友誼。
- He affixed his seal to the document. 他在文件上蓋了印。
- Their handshake was a seal of friendship. 他們的握手是友誼的象徵。
- Do you know how much a seal coat is? 你知道海豹皮大衣多少錢(qián)一件?
- The doctor told me that I have many dental problems. 醫生說(shuō)我的牙齒問(wèn)題很多。
