🧩 词语组成解析
calf
[kɑ:f]
n. 牛犊;犊皮;腓，腿肚子;
n. 用绳捆；绳比；条痕
🗣️ 情景例句
I'll discuss this matter with you behind closed doors.
我要跟你私下谈这个事。
I ought to do it again.
我应该再做一次。
What do the machines do? asked Jim.
“这些机器做什么用？”吉姆问。