1) - What's theat smell? 1) - What's that smell?

1) - What's theat smell? 1) - What's that smell?

- It's the smell of durians, I think think it's durians. - I think it's durians.

ur sentence is technically correct, but this is easier to say

- Oh, I thought it was athe smell of some kind of flower. - Oh, I thought it was the smell of some kind of flower.

- Oh, I thought it was a smell of some kindsome sort of flower. - Oh, I thought it was some sort of flower.

2) - Gee, can't you put on some perfume? 2) - Gee, can't you put on some perfume?

gee is informal, but in this context its fine

You're so smelly smell so bad. You smell so bad.

The first is grammatically correct, but this is more likely to be said by a native speaker.

What do I smell is itlike? What do I smell like?

What you said was correct but this is more natural and a more common way to say it :)

What (kind of) smell is it? What (kind of) smell is it?

I think it reads a little better with "kind of" included, but you can omit it.

What's that smell is it? What's that smell?

3) - Why, milady, you smell so fragrant. 3) - Why, milady, you smell so fragrant.

"Milady" is a hugely uncommon word outside of older English and when people are being comedic. It's more common to say "ma'am" if anything at all.

3) - Why, milady, you smell so fragrant. 3) - Why, milady, you smell so fragrant.

"Milady" is pretty archaic and using it these days is associated with some pretty negative stereotypes, just a heads up. I think this is supposed to sound old fashioned though?

3) - Why, milady, you smell so fragrant. 3) - Why, you smell so fragrant.

dont say "my lady" if u say this in america, u will get laughedat lol because this is used to make fun of reddit users (american version of 知乎)

- I amdo? - I do?

- I amReally? Really?

But, I'm not wearing any perfume. But, I'm not wearing perfume.

- They say if two are a perfect match biologically, they can smelldetect a special smellfic scent from each other. - They say if two are a perfect match biologically, they can detect a specific scent from each other.

What you said was correct but I changed it to flow a bit better :)

- They say that if two people are a perfect match biologically, they can smell a special smellcent from each other. - They say that if two people are a perfect match biologically, they can smell a special scent from each other.

"a smell" has a little bit of a negative connotation, especially when applied to a person, where "a scent" does not.

- They say if two are a perfect match biologicallpeople have good chemistry, they can smell asomething special smell from each other. - They say if two people have good chemistry, they can smell something special from each other.

?

- Oh, shucks. - Oh, shucks.

informal but its fine in this context