本期内容：

New electric vehicles will have to feature a noise-emitting device, under an EU rule coming into force on Monday. It follows concerns that low-emission cars and vans are too quiet, putting pedestrians at risk because they cannot be heard as they approach. All new types of four-wheel electric vehicle must be fitted with the device, which sounds like a traditional engine.

feature: vt. 有某种特殊属性 n. 特点；特征
facial feature: 面部特征
feature story: （新闻）专题报道
noise-emitting: 发出噪声的
emit: vt. 发出
emission: n. 排放
greenhouse gas emission: 温室气体排放
carbon dioxide emission: 二氧气体排放
device: n. 装置
come into force：（法律）生效
putting sb. at risk: 使某人处于危险之中
pedestrian: n. 行人
approach: v. 接近，靠近
engine: n. 引擎

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