Snow Puppies is a ski school for 3 to 6-year-olds.“雪狗之家”是一所针对3至6岁儿童的滑雪学校。He bent to a squat and gathered the puppies on his lap.他弯腰蹲下，把小狗们都抱到自己腿上。a litter of puppies一窝小狗...
Brackish waters generally support only a small range of faunas.咸水水域通常只能存活为数不多的几种动物。Principal application of reverse osmosis has been in desalting brackish waters for domestic consumption.反渗透主要应用于生活用含盐水的脱盐.This kind of op...