细丝xì sī 基本例句 filamentthread of a screwsleave 细丝细小或薄的丝线、纤维或电线A fine or thinly spunthread, fiber, or wire. 丝状的，纤维状的具有或象线或细丝形状的Having the form of or resembling athreadorfilament. 我可以很清楚地看到灯泡里的细丝断了。I can see clearly that thefilamentin the bulb is broken.