1.It is actually remarkable that despite the infant being exposed to the virus multiple times daily for up to two years of their life.
exposed to 接觸;暴露于
The soldiers in the open field were exposed to the enemy's gunfire.
曠野中的士兵遭到敵人炮火的攻擊 。
The broken windows left us exposed to the sub - zero temperatures.
破窗子使我們置身于零下溫度的嚴寒之中 。
2.The researchers exposed the TNC protein from breast milk of uninfected women to HIV, the protein linked up to the virus and made it harmless.
link up 會合;連接;聯系
They have planned to link up the two areas by telephone.
他們計劃用電話把兩個地區連接起來 。
Engineers can link up distant countries by radio or telephone.
工程師們用無線電或電話可把相距遙遠的國家聯系在一起 。