I am a British National applying for a visitor's visa on behalf of my Jordanian mother to her visit me in London. I am covering all of her travel expenses and the document checklist is as below:
-Mandatory Documents - The Passport or travel document for the applicant
-Other Documents are listed here:

I am providing the following documents in response to this:
1. Mother's Passport (Arabic & English)
2. Mother's Residence Permit in Greece where she lives (Greek & English)
3. My (Son's) Birth Certificate (Greek)
4. Photos of myself with my mother
5. Mother's Greek Bank Statement (Greek)
6. My UK Bank Statement (English)
7. Letter of Invitation (English)
8. My Proof of Address (English)
9. My Greek Bank Statement (Greek)
10. My UK Passport (English)
The document checklist states that "all documents must be in English". The two greek bank statements are lengthy and would be very costly to translate. Can I get away by translating only the birth certificate and the title page in each of those two statements?
It seems like I am providing enough evidence to support my claim that I will be covering the expenses of the travel. Do I need to translate the Greek-only documents listed under "Other Documents"?
Thanks,
T