It's using some rather primitive technology.
它使用的是非常古老的技术。
The primitive surgery of those days left him virtually deaf in one ear
那时候简陋的外科手术让他一只耳朵几乎失聪。
The conditions are primitive by any standards
无论用什么标准来衡量，其条件都很简陋。
The paradox is that the region's most dynamic economies have the most primitive financial systems
矛盾之处在于这个地区最有活力的经济体却有着最落后的金融体系。
Primitive humans needed to be able to react like this to escape from dangerous animals
原始人必须要能作出这样的反应以逃避危险的动物。