Performance deficiency
[计] 性能缺陷
🧩 词语组成解析
🗣️ 情景例句
Grandpa helped me yesterday afternoon.
昨天下午祖父帮我的忙。
How can he give us such a tedious lecture!
他怎么能做这么沉闷乏味的演讲。
The woman was a visitor. She did not live in London. She lived in the country.
这老太太是位游客，不住在伦敦。