Annual magnetic variations
[电] 岁磁变
🧩 词语组成解析
n. 变奏曲, 变更；变种（variation的复数形式）
🗣️ 情景例句
My opinion exactly.
英雄所见略同。
What would you have done last night if you hadn't had to study?
如果昨晚你不必学习你会做什么？
Oh, I have to wash all my clothes, clean the floor, and keep everything clean and tidy.
噢，我得洗我的全部衣服，擦地板和保持每样东西清洁、整齐。