a major U.S. pharmacy and retail chain

美国大型连锁药店与日用品零售商

prenatal test that samples placental tissue for genetic analysis

产前检查，取胎盘绒毛组织进行遗传学分析

an early centralized version control system for source code

早期的集中式源代码版本控制系统

the body system of the heart and blood vessels

由心脏与血管构成的身体系统

disorder with recurrent, severe episodes of nausea and vomiting

以反复严重的恶心与呕吐发作为特征的综合征

eye strain and discomfort from prolonged digital screen use

因长时间使用电子屏幕引起的眼疲劳与不适