Not seen or noticed.

• Out of sight or invisible.
• Unobserved or undiscovered.

未被看见或注意到。

• 不在视线内或不可见。
• 未被观察或发现。

Not previously seen, read, or studied.

• New or unfamiliar to the viewer or reader.

先前未见、未读或未学习的。

• 对接触者来说是新的或不熟悉的。

An exam or task using material not previously seen or studied.

• Common in education contexts.

含未提前见过或学习过材料的考试。

• 常见于教育场景。

Past participle of unsee.

• Having the seeing of something undone or reversed.

动词 to unsee 的过去分词。

• 将已看到之事“撤销”。