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紫外线
zǐ​wài​xiàn

ultraviolet ray

Definitions Defs Origin Strokes Stroke Words Sentences Sents

1 sentence

  1. 紫外线是看不见的。

    zǐ​wài​xiàn shì kàn​bu​jiàn de.

    Ultraviolet waves are invisible.

    Source: AI Challenger 2017