单词：silica glasses
单词：silica glasses 相关文章
12 Buying Glasses GLOSSARY sunglasses glasses that are worn to protect ones eyes from bright sunshine and other strong lights * Do you know where my sunglasses are? Its really bright outside and I cant see anything. frames the metal or plastic part t
2009年ESL之就医和人际交往
Plant Self-defense Plants may appear to be helpless in the face of hungry,toothy animals but many plants have evolved interesting systems of self-defense. Coarse meadow grasses are a good example. If you run your finger along a blade of coarse grass,
英语听力文摘 English Digest
1 Why Not Wear Glasses 1 为什么不戴眼镜 My niece Helen was a typist and her eyes were not very good, so she usually worn glasses. But when was nineteen and began to go out with a young Russian man, a son of a leading politician. She never worn
英语小达人
AS IT IS 2015-07-14 Silica Sand Mining Worries Communities 美国硅砂矿引发社区担忧 The United States is increasing production of oil and natural gas through a process known as fracking. This process is sometimes called hydraulic fracking be
2015年VOA慢速英语(七)月
AILSA CHANG, HOST: Despite mounting evidence and a stream of dire warnings, federal regulators and mining companies failed to protect coal miners from toxic dust. MARY LOUISE KELLY, HOST: NPR and the PBS series Frontline spent more than a year lookin
2018年NPR美国国家公共电台12月
Give me some glasses please,Jane. Which glasses? These glasses? No,not those. The ones on the shelf. These? Yes,please. Here you are. Thanks. on prep. 在之上 shelf n. 架子，搁板 on the shelf 双宾语结构，宾语（动作的承受者）可以
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