Mesosilicate
焦硅酸盐
🗣️ 情景例句
If I've ever been sure of anything, I'm sure of this; your team is going to lose the same game on Saturday.
这一次我十分肯定：你们队星期六的比赛会输。
Following the dinner will be addresed by the candidate.
晚饭后将由候选人作演讲。
No spitting on the street.
禁止在大街上吐痰。