Undefinable
a. 不能下定义的, 不确定的
✅ 同义词
🗣️ 情景例句
I can act on it.
我就可以处理。
I'm feeling under the weather.
我觉得不舒服。
All products have to pass strict inspection before they go out.
所有产品出厂前必须要经过严格检查。