锁链的英文：
ball and chain

参考例句：

To bind in fetters;enchain.
铐上脚镣;用锁链锁住

Then, and only then, will motherhood cease to be a curse and a chain for men and for children.
那时，只有到那时，母亲这一角色才能不再成为一种诅咒，不再成为男人和孩子的一条锁链。

To fling off the chains of marriage
摆脱婚姻的锁链。

Chains are a badge of slavery
锁链是奴役的标志。

Chains are a badge of slavery.
锁链是奴隶制度的标志.

The dog is chained to the tree.
那条狗被锁链拴在树上。

She freed him of his chains
她解开了他的锁链。

The fierce lion burst free from the chains.
那头凶猛的狮子一下子就挣脱了锁链。

Wedlock is a padlock.
结婚是一种锁;婚姻即锁链。

We must break the chains of slavery.
我们一定要砸碎奴隶制的锁链。

ball是什么意思：
n. 球；舞会
v. 成团块；捏成球形

You have no balls!
你们一点胆量都没！

The kitten tangled the ball of yarn.
猫把线团儿弄乱了。

A ball hissed by.
子弹嘶地一声飞过。

The dog had itself a ball.
狗玩得很愉快。

Do you have the balls to challenge authority?
你有挑战权威的胆量么？

chain是什么意思：
n. 链，束缚，连锁
v. 用锁链拴住，束缚，囚禁

a chain of supermarkets/a supermarket chain
超级市场联号.

a chain of mountains/a mountain chain
连绵的山[山脉]

Chains of gold are stronger than chains of iron
金链锁人比铁炼更牢靠

chain, link, articulated, other than roler chain
滚链除外的铰接链

The length of the chain molecule is proportional to the kinetic chain length
链分子的长度与动力学链长成正比。