Shadow-boxing
n. （拳击）空拳练习
📖 牛津释义
shadow-boxing
n [U].
🧩 词语组成解析
shadow
['ʃædo]
n. 阴影;影子;鬼，幽灵;隐蔽处;
vt. 投阴影于;使朦胧;跟踪，尾随;预示;
vi. 渐变;阴沉;
adj. 影子内阁的;阴影的;非正式的;
🗣️ 情景例句
They're so thoughtful.
他们真周到。
My brother and I used to go a lot of places together.
我的兄弟和我过去常一起去很多地方。
Because they destroy so many insects, and insects include some of the greatest enemies of the human race.
因为它们能消灭那么多的昆虫，其中包括一些人类的大敌，