本期内容：

Some premium tea bags might be leaving billions of microscopic plastic particles in your cup, new research suggests. Canadian researchers found that some plastic tea bags shed high levels of microplastics into water. Microplastics have widely been found in the environment, in tap and bottled waters, and in some foods. The World Health Organization (WHO) says such particles in drinking water do not appear to pose a risk.

premium adj. 高级的，高端的 n. 保险费；附加费
billions of: 数以几十亿的
· millions/thousands/hundreds of: 数以百万/千/百计的
microscopic adj. 微小的；微观的
· microwave: 微波 microchip: 微芯片 Microsoft: 微软
· microscope: 显微镜
· microscopic creatures: 细菌、病毒等等微生物，用显微镜才能看得见的生物
suggest vt. 建议；表明（往往说的是一份报告/研究/检查）
· You’re quite healthy, the report suggests.
这个体检报告表明你没事儿。
shed vt. 抛洒 n. 简易房，小棚屋
· bicycle shed: 自行车棚
· shed tears/blood: 流泪/流血
sth. has been widely been found in…: 某东西在……被广泛的发现
· Crude oil has widely been found in these deserts.
石油在这个沙漠地带被广泛的发现。
appear to: 似乎（seem to）
· He appears to be in his forties.
他大约有个四十来岁。
pose vt. 引起，产生 n. 姿势
· pose a problem/danger/risk: 产生问题/危险/风险

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