他们导致血管扩张，使皮肤变为红色，肿起，痕痒和剌痛，譬如可见的皮炎或湿疹。
They cause blood vessels to widen, resulting in the affected area of skin becoming red, swollen, itchy and painful, such as is seen in dermatitis or eczema.
“但愿我能够安慰他，”小树心里想：“但是我身上的刺只会更加的剌痛他。”这人踉踉跄跄地走开，再也没有回来。
"How I wish I could comfort him", thought the little bush, "but my thorns will only piece him more." the man stumbled off and did not return.
热有时使皮肤剌生上痛的疹子。
他擎起右手，用力的在自己脸上连打了两个嘴巴，热剌剌的有些痛；
He lifted up his right hand and forcefully slapped himself in the face twice in succession – it was hot, stinging and rather painful.
他擎起右手，用力的在自己脸上连打了两个嘴巴，热剌剌的有些痛；
He lifted up his right hand and forcefully slapped himself in the face twice in succession – it was hot, stinging and rather painful.
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