Seim
abbr. simple effective index method 简单有效折射率法
🗣️ 情景例句
I'll be in town next week, maybe you could fit me in.
我下个礼拜会在城里，也许你能安排时间见我。
Can you picture yourself on a boat, on a river?
你能想象你自己泛舟河上的情景吗？
Yes, I did.
是的，我给了。