Makeham's hypothesis
[医] 马克哈姆氏假说(关于死亡规律)
🧩 词语组成解析
🗣️ 情景例句
How do you keep in shape?
你怎么保持身材？
Money burns a hole in his pocket.
钱到袋里留不住。
Hi! I'm sorry I was out when you rang.
你好！我很抱歉，你打电话时我出去了。