Wheel tread
[机] 轮接触面, 轮距
🧩 词语组成解析
wheel
[wil]
n. 轮子;旋转;Wheels 汽车;有…轮子的汽车（或自行车等）;
vi. 转动，旋转;突然转变方向;
vt. 推;拉（车）;使变换方向;（使）迅速转身;
tread
[trɛd]
vi. 踩，踏;行走;交尾;
vt. 踩成;踏出;步行于;踩（烂）;
n. 踏，踩，走;交尾;（楼梯的）踏板;轮胎接触地面的部分;
🗣️ 情景例句
A red sky at night indicates fine weather the following day.
晚上天边红预示着明早天气好。
It's nothing.
小事情。
If she were alive today she would not be able to air her views on her favourite topic of conversation: domestic servants.
如果她活到今天，她将不能就她热衷的话题“佣人”发表意见了。