xiǎn / wēi / jìng / xià / zhè / zhǒng / luó / xuán / tǐ / chéng / xiàn / chū / xì / cháng / de / luó / xuán / xíng

显微镜下，这种螺旋体呈现出细长的螺旋形。

Under a microscope, this spirochete appears long and slender with a spiral shape.