Nonretractable
不能伸缩的, 不能缩进的
🗣️ 情景例句
These items shouldn't be difficult to come by
这些东西应该是不难弄到的，
The more a man knows, the less he knows he knows.
懂得越多，就越知道自己懂得不多。
It was very old and precious even then.
却使在当时，它也属历史悠久的珍奇之物。