Riversideite
纤硅钙石
🗣️ 情景例句
I'm glad you like them.
我很高兴你喜欢它们。
I haven't seen you for age. You haven't been sick, have you?
好久不见。你不是病了吧？
The slope averages about 1 in 30, but contains steep,
坡度平均约为1/30，但其中包括陡峭的，