similef

Don't look a gift horse in the mouth

sweetener 

• [countable] (informal) something that is given to somebody in order to persuade them to do something, especially when this is done in a secret or dishonest way
•  something that you give to someone to persuade them to do something, especially to accept a business deal:
  These tax cuts are just a pre-election sweetener.

4. command of something knowledge of something, especially a language, or ability to use something
(have a) good/excellent/poor etc command of something
 He’s studied in the US and has a good command of English.

3. take/quote something out of context to repeat part of what someone has said or written without describing the situation in which it was said, so that it means something quite different:
 His comments, taken out of context, seem harsh

build on ( )

1. build something on something to base something on an idea or thing:
Our relationship is built on trust.

2. build on something to use your achievements as a base for further development:
The new plan will build on the success of the previous programme.

odds

 1. how likely it is that something will or will not happen:

all round

[adverb]
everywhere, all over, everyplace, far and near, far and wide, high and low, overall, throughout

(of a person) with a wide range of skills or abilities

• ● She's a good all-round player.

including many different subjects, skills, etc.

• ● an all-round education
• ● We are looking at the all-round development of the children and not merely their academic progress.

good at doing many different things:
an all-round athlete

حیوون زبوون بسته

dumb

5.  used to talk about animals when you want to emphasize that humans often treat them badly and they cannot protect themselves

دمبلم از اینجا میاد

dumb bell = dumbell

a brittle mood or state of mind is one that appears to be happy or strong but is actually nervous and easily damaged

add weight

. [uncountable] if something has weight, it is important and influences people:
She knew that her opinion carried very little weight.
give/add weight to something
This scandal adds more weight to their arguments.

betterment

Ève Curie died in her sleep on 22 October 2007 in her residence . She was 102 years oldann  Veneman  the executive director of UNICEF, said after her death:

rule of thumb
a way of calculating something which is not exact but which will help you to be correct enough.
A good rule of thumb is to cook two handfuls of rice per person.

A useful principle having wide application but not intended to be strictly accurate or reliable in every situation.

 a basic or accepted pattern or rule

 rule of thumb

Never look a gift horse in the mouth. SAYING
said to advise someone not to refuse something good that is being offered

never look a gift horse in the mouth
do not complain when you receive a gift
You should never look a gift horse in the mouth and instead accept a gift even if you do not want or need it.

add fuel to the fire
to make a problem worse, to make an angry person angrier

The company added fuel to the fire when they criticized the angry workers.

to make an argument or a bad situation worse.