鲨鱼的种类有很多，而经常被载攻击人的只有四种 – 牛鲨（学名白真鲨）、虎鲨（学名居氏鼬鲨）、大白鲨（学名噬人鲨）、白鳍鲨（学名灰三齿鲨）
While there are numerous types of sharks, only four are most frequently cited in encounters with humans—the bull shark, the tiger shark, the great white shark and the oceanic white tip shark.
Kushi博士注意到许多很少食用乳制品的国家文化比北美洲人的骨质疏松症的概率少很多，而北美洲人消耗的牛奶和其他种类的乳制品很多。
Dr. Kushi notes that many cultures that consume few dairy products have much lower rates of osteoporosis than North America, where consumption of milk and other types of dairy is higher.
当我说到深色叶菜，大部分人会想到菠菜。但还有很多其它种类的深色叶菜，包括羽衣甘蓝，甘蓝和莴苣。
The minute I say dark, leafy vegetable, most people envision a cluster of spinach. There aremany other variations of dark leafies that include collard greens, kale, and even romaine.
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