Training shoe
= trainer (1)
🧩 词语组成解析
training
['trenɪŋ]
n. 训练;培养;（枪炮，摄影机等的）瞄准;整枝法;
v. 训练，培养( train的现在分词);教育;瞄准;整枝;
shoe
[ʃu]
n. 鞋;蹄铁;（汽车轮的）制动器，煞车;外胎;
vt. 为…钉蹄铁;给…穿上鞋;装防护物;
🗣️ 情景例句
Have a go at it.
你来试一试。
It's better than nothing.
总比没有好。
I can't get down.
我下不来了。