If the policy is successful,yielding the desired results in the 50-year period after 1997,we shall have little reason to change it then.是什么意思_If the policy is successful,yielding the desired results in the 50-year period after 1997,we shall have little reason to change it then.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句