要害的英文：
a sore point
a sore spot
key
tender place
the joint in sb's armour
vitals
where one lives

参考例句：

To hit the nail on the head
(敲钉子敲在钉头上,引申为话说得中肯、正中要害、一针见血)。

Have a person by the jugular
扼住对方的要害

The criticism from the masses touched me where it hurt.
群众的批评击中了我的要害。

He is possessed with the idea that someone is persecuting him.
他老是觉得有人要害他。

a strategic attack aimed at the enemy's jugular.
以敌人要害为目标的一次战略性进攻

Your comments really hit home.
你的评论确实恰中要害。

He deserves credit for grasping the industry's problems quickly and then trying to tackle them.
金德勒能很快抓住制药业要害，并拿出方案对症下药，这一点值得肯定。

No one could spot a gentlewoman quicker than Father Ralph.
没有一个人能象拉尔夫神父那样快地击中女人的要害。

She kneed her attacker in the vitals (ie in the genitals) and ran away
她用膝盖撞那个袭击者的要害部位(生殖器), 然後跑掉了

No one could spot a gentlewoman quicker than Father Ralph
没有一个人能象拉尔夫神父那样快地击中女人的要害。

sore是什么意思：
adj. 疼痛的；恼火的；剧烈的；厉害的，迫切的；痛心的
n. 疼痛处，溃疡

An old dog bites sore.
老狗咬人厉害得很。

An old dog Bites sore
老狗咬人痛得很

Patience is a plaster for all sores.
忍耐可以减轻一切痛苦。

point是什么意思：
n. 点；标点；要点；尖端；得分
v. 削尖；指向；加标点于；表明

That is not the point in question.
那不是要考虑的要点。

orientation point
方位点

A score made on a try for a point or points after a touchdown.
触地得分在触地后再次发球所得的一分或几分

spot是什么意思：
n. 斑点；污点；场所；职位；旅游胜地
v. 弄脏；玷污；认出，发现
adj. 立即的，当场做出的
adv. 恰好，准确地

There are spots in (or on) the sum
人孰无过

It was cute of you to spot the truth.
你能发现真相真是精明的很。

To mark or mottle with spots.
有斑点，成斑驳用点作标记或使斑驳杂色