Logetronography
电子滤波术, 电子选频术
🗣️ 情景例句
but this is an important opportunity.
但这是一次很重要的机会。
Joy and sorrow are next-door neighbours.
是喜是忧难以分。
Hello. Can I speak to Pippa, please?
喂！请问皮帕在吗？