Montmorillonitestructure
朦脱石结构
🗣️ 情景例句
It's almost ten o'clock.
差不多十点了。
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。
It is no use starting late in life to say:
年老的时候说