甘于的英文：
ready; willing

参考例句：

He wasn't content to sit and watch, but he couldn't stand unaided on the soft sand
他不甘于坐在那里当观众，但又无法在松软的沙滩上自己站起来。

The Athenians became increasingly opposed to this arrangement, and on Alexander's death in 323 BC war broke out
雅典人越来越不甘于这种安排。公元前323年亚历山大一死，雅典和马其顿间便爆发了战争。

ready是什么意思：
adj. 准备好的，现成的；快要…的；迅速的，即时的；情愿的
adv. 预先；迅速地
n. 预备好的状态；现款
v. 使准备好

Ready money is a ready medicine
现钱等于成药

a ready intelligence;a ready response.
灵敏的思维；快速的反应

The dealer is not ready
庄家还没准备好。

a ready intelligence
灵敏的思维

Everything is in readiness.
一切准备就绪。

willing是什么意思：
adj. 乐意的；自愿的
v. will的现在分词

They bear you no ill will.
他们对你并无恶意。

Are you willing to concede the right to us?
你愿意把权利让给我们吗？

To leave or give(property) by will.
遗赠按照遗嘱留赠（财产）

The spirit is willing But the flesh is weak
力不从心。

They are willing to take manual jobs.
他们愿意干体力活。