Adjustable extent
[计] 可调节范围
🧩 词语组成解析
🗣️ 情景例句
Great! Pass me the hammer.
很好！把钉锤给我。
Rear sons for help in old age; and store up grains against famine.
养儿防老。
Future historians will be in a unique position when they come to record the history of our own times.
未来的历史学家在写我们这一段历史的时候会别具一格。