Isarithm
n. 等值线\\n
✅ 同义词
🗣️ 情景例句
(a foreigner) Is that a special day?
（一个外国人）是一个特殊的日子吗？
To know one's self is true progress.
能有自知之明就是真正的进步。
One of the real pluses of this product is that it is of very high quality and of compact size.
这种产品的真正优点之一就是高质量和小体积。