The preposition 按照 is usually stated before words like “customs”, “rules”, “requirements”, “plans”.
For example: “according to the custom”, “according to the rules”.
We use 按照 to emphasize that the action is performed according to some standard.
Everything is going according to plan
yīqiè jūn ànzhào jìhuà jìnxíng
It is a tradition to wear an evening dress in the casino
ànzhào xísú zài dǔchǎng yào chuān wǎn lǐfú
Let's do it according to his request
wǒmen ànzhào tā de yāoqiú zuò ba
In colloquial speech, we can shorten 按照 to 按 or 照.
After 按照, we can only state nouns or word combinations consisting of two or more syllables.
For example, we can say 按照法律 , but it’s incorrect to say 按照法.
After 按 and 照, we can state either one-syllable or multi-syllable words and phrases.
The pricing is based on quality
zhào mùqián de qūshì
In that case, let's do it according to your opinion
jìrán zhèyàng, jiù àn nǐ de yìjiàn bàn ba
Fees are charged using a fixed rate
fèiyòng àn gùdìng de fèilǜ shōuqǔ
The prepositions 依 and 依照
依照 emphasizes strict compliance with a pattern or complete obedience to some opinion. It can be used either in formal speech when talking about laws and rules or in colloquial speech when talking about habits and plans.
After 依照, we can only state nouns or word combinations that consist of two or more syllables.
According to the school's rules, she will be expelled from school
yīzhào xuéxiào de guīdìng, tā yào bèi kāichú xuéjí
I did it according to the manager's wish
wǒ yīzhào jīnglǐ de yìsi ér zuò de
According to Chinese custom, families eat spring rolls together on New Year's Eve