🧩 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
It is! She's having pains a minute apart!
是啊。她隔一分钟就会痛呀。
To wave your arms
振臂，挥手
It's all about space and satellites.
全是有关宇宙和卫星的。