insider.si.edu: One red dot : a pop-up book for children of all ages / by David A. Carter
One red dot : a pop-up book for children of all ages / by David A. Carter
Each page contains an original piece of artwork that challenges the reader to find the one red dot. siris_sil_905165 ...
0 The phrase 'one of the' is used to describe something/someone from the same group. There are many birds on the tree. One of the birds is red. This means we are talking about all the birds on the three but then when you want to be specific about the red bird, you use one of the. He is one of the soldiers who fights for their country - is correct.
The 'one hand' could be any generic hand (no article) or a specific one (definite article). 'The other' refers to the 'matching hand' of the first one. There can only ever be one, and it is being referred to explicitly as the partner of the first, therefore it needs a definite article.
The difference is that "one" puts more emphasis on the number such as I have 4 computers and a printer/I have 4 computers and only one printer. So when you say a feature of my work or one feature of my work, it means the same, with the only difference that "one" is emphatic compared to "a".
One-to-one is used when you talk about transfer or communications. You may use one-to-one when you can identify a source and a destination. For eg., a one-to-one email is one sent from a single person to another, i.e., no ccs or bccs. In maths, a one-to-one mapping maps one element of a set to a unique element in a target set. One-on-one is the correct adjective in your example. See Free ...