Flags
n. 标记；旗帜（flag的复数）
🗣️ 情景例句
I really enjoyed talking with you.
很高兴和你聊天。
He is now out of touch with his old friends.
他现在已经没有和他过去的朋友联系了。
The key to a solution of that problem lay in an everyday observation.
可以从我们的日常生活观察中找到这个问题的答案。