Ulmain
凝胶化植物质煤
🗣️ 情景例句
OK, please. I'll order something else at first.
好的，来一份。我先点别的东西。
If two men ride on a horse, one must ride behind.
两人同骑一马，必有一人在后。
That's the end of the tour.
参观就此结束了。