成年灰松鼠较重，体重在400至600克之间。
Adult grey squirrels are heavier, weighing between 400 and 600 grams.
许多灰松鼠悄无声息地携带着一种对红松鼠致命的疾病。
Many gray squirrels are silent carriers of a disease fatal to red squirrels.
红松鼠生活在高高的树上，而灰松鼠则大部分时间生活在地面上。
Red squirrels live high up in trees, while grey squirrels spend more of their time on the ground.
美国最常见的松鼠是红松鼠和灰松鼠。
The most common squirrels in the United States are the red squirrel and the gray squirrel.
他差点就对佛里德曼说他买了一个灰松鼠，但你知道自从被帕罗塔解雇以后我就再也不说俏皮话了。
I almost told Friedman he'd bought a squirrel, but you know I cut that smart stuff out ever since Palotta laid me off.
科学家同样也担心英国当地的蟹种的生存会受到打压，就像当年从美国引进灰松鼠导致英国本地的红松鼠几乎绝迹一样。
Scientists also fear native species of crab could be overwhelmed like the red squirrel, on the verge of extinction after being pushed out by greys from the US.
科学家同样也担心英国当地的蟹种的生存会受到打压，就像当年从美国引进灰松鼠导致英国本地的红松鼠几乎绝迹一样。
Scientists also fear native species of crab could be overwhelmed like the red squirrel, on the verge of extinction after being pushed out by greys from the US.
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