Secondary(optical)axis
[化] 副轴; 副光轴
🗣️ 情景例句
Western countries have evry strict visa requirements.
在西方国家有严格的签证要求。
How long could the buyer expect your product to last?
购买者期望你们产品的使用期是多久呢？
Nearly a week passed before the girl was able to explain what had happened to her.
几乎过了一个星期，那姑娘才能讲述自己的遭遇。