Bifocal lens
[医] 双焦点透镜
🧩 词语组成解析
bifocal
[[bai'fəukəl]]
a. 双焦的\\n[医] 双焦点的
lens
[lɛnz]
n. 透镜，镜头;眼睛中的水晶体;隐形眼镜;汽车的灯玻璃;
🗣️ 情景例句
Being a mother is not easy,
当一个母亲真不容易，
I did composition last month.
我上个月做作文。
has spent his lifetime studying active volcanoes and deep caves in all parts of the world.
花了毕生的精力来研究世界各地的活火山和探洞。