Topic sentence
[计] 课题句子
🧩 词语组成解析
🗣️ 情景例句
Let's make it 6:00 at your place, is that OK?
咱们六点在你们家见，好吗？
He is attending a conference now.
他正在出席会议。
has spent his lifetime studying active volcanoes and deep caves in all parts of the world.
花了毕生的精力来研究世界各地的活火山和探洞。