Elmidae
长角泥甲科
🗣️ 情景例句
The news was announced to the public on TV.
这则消息经由电视向大众宣布。
The masses have boundless creative power.
群众有无尽的创造力。
Tie a heavy weight at the end of a long piece of string.
把一个重物拴在一根长绳子的一端，