there are many expressions can descirbe an idea but i can't think outside of box,i only speak and write beginner english,it's english but it's totally chinese,that's my main problem

english:a with b without c is d which e
my english:a and b and c and d ==

i'm not good at using function words obviously

it has a logic to use function words so you need to think like english speaker not chinese,but i can't think that way,my style is fixed

一直短句鋪排導致只會用and

Maybe consuming more materials would help you?

I also have the struggle about how to spend my spare time. I ended up watching English or Japanese materials, so I can convince myself because I'm at least practicing listening.

alu4: Exactly,I need more practices and materials.Watching,reading,others' posts any random materials helps a lot.

Practice makes perfect, good luck.