Boettger's test
[医] 伯特格氏试验(检一氧化碳)
🧩 词语组成解析
🗣️ 情景例句
I have to feed a family of five.
我不得不养活五口之家。
What day was yesterday?
昨天是星期几？
Thirteen is not as good as one, but it's better than nothing.
“13下是不如1下好，但总比1下也不敲强。