Reflection density
[医] 反射密度
🧩 词语组成解析
🗣️ 情景例句
I see him on the train every day but we are not on speaking terms.
我每天都在火车上见到他，但彼此没有说过话。
Better say nothing than nothing to the purpose.
与其说话不中肯，不如一言不发好。
After seven days of this I went to a party.
这样过了7天以后，我去参加一次聚会。