向左急转。
Every student studied hard in order not to be left behind by other students.
为了不落后于其他同学，每个学生都努力学习。
After all, we think, when our hard drive crashes we have nothing left.
毕竟，当硬盘崩溃的时候，我们不想什么都没有了。
My dad left us when I was 5, and I took that really hard.
在我5岁时，我的父亲离开了我们，我受到的打击很大。
Having left the fast track, many women find it hard to get back on.
如果以及错过了一班快车，很多女性发现要追回去实在太难。
The boxer hits hard with his left.
拳击手用其左拳狠狠出击。
Mum Bear: Where have you left it? Think hard!
熊妈妈：你又掉到哪里了，好好想想！
The speaker tried hard to impress the audience but left them cold.
讲演者试图感动听众，但他没有打动听众的心。
And suddenly it's hard to find the memories you left behind.
忽然发觉难以找到你留下的记忆。
If you don't study hard, you'll be left behind.
你要是不努力学习，就会落在别人后面。
It was raining hard when I left my office.
当我离开办公室时，雨下得正大。
Mark left by pressing an object hard into a surface.
将一物压在另一物上留下的印记。
This left many wondering what all their hard work had accomplished.
这让大家都充满了疑问，大家所作出的努力都获得了什么呢？
Those left behind say it is hard for them, too.
那些留下来的人对于他们来说日子也很艰难。
The boxer hits hard with his left fist.
西尔顿的杀手锏是左手刺拳。
The boxer hits hard with his left fist.
他一拳打在男孩左眼下边。
The boxer hits hard with his left fist.
他一拳打在男孩左眼下边。
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