Upper transmission
[化] 上传动
🧩 词语组成解析
upper
['ʌpə]
adj. 地位较高的;上面的;内地的;地表层的;
n. 鞋帮，靴面;兴奋剂;令人兴奋的经历;
🗣️ 情景例句
That's what I love about Susan.
这就是我爱Susan的一点。
Fall sick and you will see who is your friend and who is not.
困难见友情。
that people have for years assumed that the process of losing vigour with time,
多年来就已认识到。生命力随着时间流失而丧失活力，