Detectoscope
水声探 测器, 水中听音器
🗣️ 情景例句
What's wrong?
什么病
I learned geography last week.
我上星期学地理。
Look! There's Meimei! She's very strong. She's lifting that ladder.
瞧！梅梅在那儿。她很强壮。她举着把梯子。