Perthes' method
[医] 佩特兹氏法(连续吸引术)
🧩 词语组成解析
🗣️ 情景例句
Don't cross that bridge till you come to it.
没到河边，先别操心怎么过桥。
How far is it to the university?
它离大学多远？
The most economical age to capture an elephant for training is between fifteen and twenty years,
捕捉15至20岁之间年龄的大象进行驯练最为经济。