To reduce this risk, blood Banks and organ donor programs screen donors, blood, and tissues thoroughly.
为了减少这种风险，血液银行和器官捐赠过程中就要对捐赠者及其血液和组织进行彻底的筛查。
2
In churches the rood loft is a display gallery above the rood screen, and a choir or organ loft is a gallery reserved for church singers and musicians.