🧩 词语组成解析
[医] 关节
[医] 滑膜
🗣️ 情景例句
I was very sad indeed to hear about it.
听了这件事，我的确非常难过。
Please try to focus your attention on the speaker.
请试着把注意力集中于演讲的人。
but then she decided that at her age it might be more prudent to have someone with her,
但转念一想，像她这个年纪，最好找个人一起去。