extra hard

基本解释

Optimally, purchase at least one extra hard drive when building the storage server to reduce potential delays.
在构建存储服务器时，最好购买至少一个额外硬盘驱动器来减少可能的延迟。
You will either have more of the right kind of energy to help your focus, or you’ll need to work extra hard just to keep awake.
那么你就需要食用更多的适当种类的能量来帮助你提升注意力，或者你需要额外的工作来保持你的清醒。
I also suggest telling your boss that you slaved away on these widgets, so that he'll think you worked extra hard this year and give you that raise you've been striving for.
我还建议您告诉您的老板，您正在苦心研究这些小部件，这样他就会认为您今年工作特别努力，并且给您升迁的机会。

I know I will need to work extra hard.
我知道我得在工作上再加把劲儿。
I want to 实战 - SpeakingMax英语口语达人

But, come Monday night, he'll be tuned in and pulling extra hard for his beloved Tide.
NPR: 40 Years Ago, Irish-Tide Played Game For The Ages
If you have a poor or weak employment brand you have to work extra hard, and often the best people go elsewhere.
FORBES: Understanding the LinkedIn Talent Brand Index
Further, says Peabody, world steel production is up 8% this year, requiring an added 75 million tons of extra hard and hot-burning metallurgical coal.
FORBES: Peabody Earnings Up, Coal Supercycle Just Beginning