on condition that
*在……的条件下
**Greencough isn’t difficult to deal with on condition that the storage of catmint is enough.
*如果
**Mapleshade could have been a loyal and kind warrior on condition that her kits didn’t die.

on no account/condition/occasion
*决不
**On no account would Hawkfrost give up his ambition.

on the basis of
*以……为基础
**Scourge gained power on the basis of his story of beating a dog’s spreading.

刚高一

by accident
*偶然
**Bramblestar believed Hollyleaf drove Ashfur to death just by accident.

by air/plane
*乘飞机
**The day before fleeing from his twolegs, they were planning to take Graystripe for a trip by air.

by chance
*偶然
**Gray Wing couldn’t forget Storm any more after meeting her by chance.

by force
*用暴力
**”Give us the preys, or we’ll take them by force.”

by hand
*用手工
**The young twoleg would cry aloud if he knew Longtail tore Rusty’ collar which he made carefully by hand apart.

by mistake
*错误的
**Only Hollyleaf and Ashfur knew Sol was accused by mistake.

by the day
*按天算
**Goosefeather was getting more and more mad by the day.

by nature
*天生的
**Leafkit was a medicine cat by nature.

by radio
*通过收音机
**Princess always hoped she could hear about her kit by radio, for she once heard a meow through the strange machine.

by telegraph
*以电报形式
**The twolegs living by the lake received the warning of the storm and flood by telegraph, but few paid much attention.