On their own
靠───by;他们───they
This book is by John, Jones, et al.───这本书的作者是约翰 、 琼斯等人.
He makes a living by doing odd job.───他通过做临时的工作来谋生.
Some people exterminate garden insects by spraying poison on the plants.───有些人在植物上喷撒毒剂以杀死花园内的昆虫.
The king was attended upon [ on ] by a number of servants.───国王有好多奴仆侍候.
I had better say a few words by way of explanation.───我最好以解释的方式说几句话.
He was a loner by nature and by inclination.───他天性不喜交际,且自己也无意于此。
The difference is found by subtraction.───用减法得出差额.
They tried to smother up the murder by pretending that her death was accidental.───他们谎称她是意外死亡以掩盖谋杀事实.
Seize (or Take) time by the forelock.
You cannot judge a tree by its bark.
They are never alone accompanied by noble thoughts.
Children under 14 must be accompanied by an adult.
Many receive advice only the wise profit by it.