Since email addresses can change frequently, maintain the integrity of your email list by carefully tracking the number of bounce-backs or undeliverable emails after every campaign.
由于email地址可能经常改变，每次发送过后，记得要小心追踪退回邮件和发送失败邮件的数量已保证数据的完整可靠。
If you change the design or the number of replicates, this list will reflect the new set of possibilities.
如果更改设计或仿行数，则此列表将反映一组新的可能组合。
Climate Change was the number one phrase for the first decade of the 21st century and, although for 2011 it ranks 4th on the top phrases list, it still resonates in its second decade.
气候变化是21世纪头十年最热短语，虽然今年只排到了第四位，但其影响力仍然会在第二个十年里展现出来。
Climate Change was the number one phrase for the first decade of the 21st century and, although for 2011 it ranks 4th on the top phrases list, it still resonates in its second decade.
气候变化是21世纪头十年最热短语，虽然今年只排到了第四位，但其影响力仍然会在第二个十年里展现出来。
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