Rodometer
压电轴向计
🗣️ 情景例句
It's good that you went back.
你回去是对的。
He likes playing the flute.
他喜欢吹长笛。
Arthur C.Clark once suggested a revolutionary idea passes through three phases:
Arthur C.Clark曾经提出，一个革命性的想法经过三个阶段：