Do you know what great efforts she had made until she reached her success at last

Do you know what great efforts she had made until she reached her success at last
这里最后还要加AT LAST为什么
加了之后翻译成最后他成功时?好象很别扭啊 还是翻译成别的

Do you know? Do you know尉迟 do you know England? Do you know these? Do you know what___ do you know _? Do you know that_chairman 数学题.do you know? do you know Do you know?中文歌词