Definition
血丝 refers to tiny red lines caused by dilated capillaries, most commonly seen in the whites of the eyes when you're tired, sick, or irritated. You can also use it for faint red streaks on the skin. The English gloss 'a trace of blood' is misleading — 血丝 is specifically about visible, thread-like red lines, not about a general small amount of blood. It's often used with 布满 (bù mǎn, 'covered with') or 一丝 (yì sī, 'a tiny streak').
n.
bloodshot streaks (in the eye)tiny red lines of blood (on skin or whites of eyes)
Examples
- ，血丝。Tā áo le yí yè, yǎnjīng lǐ bù mǎn xiě.He stayed up all night, and his eyes were covered with bloodshot streaks.
- 血丝，。Tā de yǎnbái shàng yǒu yì sī xiě, kěnéng shì guòmǐn le.There was a tiny red line on the white of her eye — she might be having an allergic reaction.
- ，血丝。Jǐnzhāng de shíhou, tā de liǎn shàng huì chūxiàn dàndàn de xiě.When he's nervous, faint red streaks appear on his face.
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