Indian sign
[美国英语]；印第安人出没的踪迹(或迹象)
🧩 词语组成解析
🗣️ 情景例句
This is a rough group.
这是一群粗野的孩子。
The story Sam told wasn't very funny.
萨姆的故事一点意思也沒有。
and they provided a striking demonstration of the potentialities hidden in instruments and apparatus.
并充分显示出了仪表和仪器的潜在力量。