Scientific system
[计] 科学系统
🧩 词语组成解析
🗣️ 情景例句
It's a lovely area,
那里是个可爱的地方，
To have money is a fear, not to have it a grief.
有钱使人担心，没钱使人伤心。
That's a big box. Is it heavy? Please let me help you.
这是个大盒子。重吗？让我来帮你。