英文grammar改正(2)!!!

We are pleased to send you our latest catalogue, quotations and discounts.


Different -
as you know – you know [facts]
as you understand - you understand [something or theories or situations]

an irrevocable L/C gives the exports the advantage of increasing the protection of the banker's guarantee.


Since we agree to use sight L/C, ...


I think we would better discuss the terms of payment in more details.
-
you can get a 3% discount if you pay by cash.

I think we can meet your requirement for the packing design.

each pair of cloth slippers

- We are pleased to send you our latest catalogue, quotations and discounts. (no the)
- as you know = as you understand??? (not the same, someone know you doesn't mean that he understands you)
- an irrevocable L/C gives the exports increase the protection of the banker's guarantee.
(both need the but this sentence has 2 verbs, I suggest you can change to "an irrevocable L/C increases the protection of the banker's guarantee to the exporters).
- Since we agree to use sight L/C, ...(no the)
- I think we would better discuss the terms of payment in more details. (no be and no to)
- you can get a 3% discount if you pay by cash. (not yet pay, no need to use past tense and by cash is not passive voice)
- I think we can meet your requirement for the package design. (you may also use packaging, but not packing)
- each pair of cloth slippers ... (use each)

We are pleased to send you our latest catalogue___ the___ quotations and discounts.
- as you know = __are__ you understand???
- an irrevocable L/C gives the exports increase ___the___ protection of ___the___ banker's guarantee.
- Since we agree to use ___the___ sight L/C, ...
- I think we would ___be___ better ___to___ discuss the terms of payment in more ___details___.
- you can get a 3% discount if you ___pay___ by cash.
-I think we can meet your requirement for the ___packing___ design.
- ___each___ pair of cloth slippers ...