Flare - a sudden recurrence or worsening of symptoms; "a colitis flare"; "an infection can result in a lupus flare" 知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 unit - an instrumentality invented for a particular goal; "the machine is small enough to use on your wrist"; "a device intended to preserve drinking water" Microsoft https://davidd109lap5.blogcudinti.com/profile