常見例句雙語例句An animal species becomes extinct when it fails to produce enough young in each generation to keep pace with the death-rate.當一種動物不能在每一代都繁殖出足夠的后代而與其死亡率保持一致時，它就會逐漸滅絕了。Cancer figures largely in the death-rate of the US.在美國，癌癥在死亡率中占相當大的比重。In recent years China has claimed a falling death-rate even as coal production has risen (see chart).近年來，中國一直宣稱在煤炭產(chǎn)量提升的同時，礦工死亡率則逐年下降。blog.sina.com.cn原聲例句One of the U.N.Millennium Development Goals is to reduce the under-five death rate by two-thirds by two thousand fifteen.Still, he points to some hopeful signs -- including a large reduction in the child death rate in Malawi.UNICEF says the death rate for children under the age of five has fallen twenty-eight percent since nineteen ninety.權威例句The permanent death-tax rate tops out at 55 percent.FORBES: Estate Tax CliffhangerMormon Idaho, with its open gun laws and low gun-death rate, is pretty homogeneous.FORBES: Gun Death Data Points In Both DirectionsAndy Burnham, Labour's health secretary, sought on November 30th to put the Basildon trust's deficiencies into a broader, more flattering context, in which the overall hospital-death rate is falling fast.ECONOMIST: Hospital care 返回 death-rate