1.count against对…不利；对…起反作用
count sth against sb对…不利；对…起反作用
For that job her lack of experience may count against her.
她缺乏经验可能对她申请那份工作不利。
Her height might count against her.
她的身高可能对她不利。
2.count on
期待；依靠; 依（信）赖，指望（某人做某事）；确信（某事会发生）
He is unreliable. Don’t count on him.
他是靠不住的。别指望他了。
You can count him, though.
但是你可以信赖他。
I can count on my friend when I need help.
当我需要帮助的时候，我可以依靠我的朋友。
count on sb to do sth指望、依靠、期待某人做某事
count on sb not to mention it 期待某人别提此事
count on one's co-operation 期待某人的合作
count on one's joining 期待某人的加入
count on one's keeping the promise 指望某人信守诺言
count on others for help 指望得到别人的帮助
count on sb coming 期待某人的到来
I'm counting on you to help me.
我就靠你帮我啦。
count on doing
Few people can count on having a job for life.
几乎没有人能指望一辈子都干一个工作。
For many bats, their vision is too weak to count on.
对许多蝙蝠来说，它们的视力太弱，指望不上（算不上用处）。
We can't count on this warm weather lasting.
我们不能指望这暖和的天气会持久。
Count on me. 包在我身上。
3.count for有价值，有重要性; 有…价值,有…重要性
count for little 无足轻重
count for much 非常重要
count for nothing 算不了什么
When I first came to college I realized that brainpower didn't count for much
当我初上大学的时候，我认识到智力并不太重要。
Such men don't count for anything.
他这样的人毫不足取。
The fact that she had apologized counted for nothing with him.
她已道歉，但他认为这是没有用的。
In their eyes wealth counted for a great deal, education for very little.
在他们看来，财富重于一切，教育没什么价值。
She thinks that my efforts counted for nothing.
她认为我的努力毫无意义。
In this job, experience counts for more than paper qualifications.
担任这项工作，经验比文凭更重要。
4.count in把…算在内；包括…
Electrons weigh very little, so they aren't even counted in the atomic weight.
电子非常轻，因此在原子量中甚至没有计算它。
She shrugged. 'You can count me in, I guess.'
“我想你可以把我算进去。”她耸耸肩说道。
Don't count in the broken ones.
破的别算入在内。
The final count in last month's referendum showed 56.7 per cent in favour
上个月全民投票的最终计票数显示支持率为56.7%。
I want to go to the summer camp, too. Please count me in.
我也想去夏令营。请算上我。
I hear you're organizing a trip to the game next week? Count me in!
我听说你们在组织下周去看比赛？把我也算上！
战争大片里经常有自愿加入敢死队的情形，就是用这个短语。
count sb out
不把某人算入；不包括
If you're going out tonight you'll have to count me out.
假如你们今晚要出去，就别把我算在内。
5.count off报数;清点数目;挑选
Count off! 报数！
The kids counted off from the left to right.
孩子们从左往右报数。
The soldiers counted off from the left by four.
士兵们从左起四个一组大声报数。
Will you count off the figures one by one so that I can write them down?
能不能请你把那些数字逐个报一下，这样我好记下来。
At the beginning of the meeting, she counted off the conferees.
会议开始时，她清点了与会者的数目。
He counted off five men to help with the job.
他挑选五个人来帮助做这件事。
6.count among/as把…算作一个，认为是…之一
I count Hattie among my closest friends.
我把Hattie看作是我最亲密的朋友之一。
I count you as one of my friends. 我把你算做我的一个朋友。
I count her as my best friend.
我把她看作是我最好的朋友。
7.count down (to sth)
倒计时, 倒数秒数，倒计时
She's already counting down to the big day.
她已经在对这一重大日子倒计时了。
We counted down the seconds and then said “Happy New Year” to each other.
我们一起倒计时，然后互相说“新年快乐”。
The countdown to Christmas starts here. 现在开始圣诞节倒计时。
The countdown has begun for the launch later today of the American space shuttle
美国航天飞机的发射已于今天晚些时候开始进入倒计时。