Prototropy
质子移变(作用)
🗣️ 情景例句
When was it built?
它是什么时候建造的？
You are all skilled and successful salesmen as shown by your records in the field.
从你们在这一领域的业绩来看，你们所有人都是训练有素，事业有成的推销员。
Good idea! Can I come?
好主意！我能来吗？