Limpets, snails and octopuses are mollusks.帽贝 、 蜗牛和章鱼都是软体动物.I think I’ll try the snails for lunch—I’m feeling adventurous today.我想我午餐要尝一下蜗牛——我今天很想冒险。The snails are no larger than one centimetre across.这些蜗牛体宽不超过1厘米。These ...
Dyspnea is the perception of uncomfortable , distressful, or labored breathing.呼吸困难是病人对呼吸不适 、 呼吸困苦或费力的自我感觉.I was close enough to the elk to hear its labored breathing.我离那头麋鹿非常近，能听见它吃力的呼吸声。He labored under the delusion th...