Sigmate
a. Σ形的, S形的
🗣️ 情景例句
Oh, you're a real Stewart!
噢， 是一个真正Stewart家的人
You agreed that we could make a little change in design if necessary.
可你们曾经答应这，如有必要，图案可以稍作改动。
To protect themselves from the icy water, they had to wear special rubber suits.
湖水冰冷刺骨，他们必须穿上一种特制的橡皮服以保护自己。