Forty milligrams is not a huge amount, equivalent to a can of soda or a third of a cup of coffee.
40毫克的量并不大,相当于喝一罐苏打水或是三分之一杯咖啡。
It is also the third largest national park in the lower forty-eight states, after Death Valley and Yellowstone.
VOA: special.2010.09.21
Alaskans accepted it, and on January third, nineteen fifty-nine, President Eisenhower declared Alaska the forty-ninth state.
VOA: special.2009.03.02
Joe Rosenthal took it on February twenty-third, nineteen forty-five, on the Pacific island of Iwo Jima.
VOA: special.2010.05.31
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