Flyash
粉煤灰
🗣️ 情景例句
He is with someone right now. Would you hold?
他现在在会客。你可以稍等吗？
I can't tell.
我说不准。
It's always hot in June, July and August.The sun shines every day.
6月、7月和8月的天气总是炎热的，每天都出太阳。