Sima
n. [地]硅镁层
✅ 同义词
🗣️ 情景例句
His studies haven't been inproving lately.
他的学业最近没什么进步。
Don't keep all your eggs in one basketball.
勿孤注一掷。
You forget to write down the date of your departure.
您忘了写离店日期了。