interj. 咄!, 啊!, 呸!
在线英汉词典

ugh的短语、例句：

ugh (usu suggesting a sound like made with the lips either spread or rounded very strongly 通常指类似的声音, 发音时双唇呈扁或圆形) interj (used to indicate disgust or horror, and usu accompanied by an appropriate facial expression 用以表示厌恶或恐惧, 通常伴有相应的面部表情)
Ugh! You´re eating snails! 喔唷, 你吃蜗牛啊!