First, the meaning is different.
borrow
Borrow; Draw lessons from; plagiarize
lend
Verb (abbreviation of verb) lending; Loans; Borrow (borrow).
Second, the usage is different.
borrow
The basic meaning of "borrow" is to point to someone or borrow something from somewhere (usually with something that can't be borrowed). Extension can refer to "take other people's things as your own, copy something" and "one language borrows words from another language"
Borrow can be used as a transitive verb or an intransitive verb. When used as a transitive verb, it can be used in the passive structure, with nouns or pronouns as objects.
May I borrow your roller skates?
May I borrow your roller skates?
lend
Lend basically means "borrow", and extension can also mean "provide", "help" and "add". It can be used as a transitive verb or an intransitive verb. When used as a transitive verb, it can take a noun or pronoun as an object or a double object, and its indirect object can be transformed into the object of the preposition to.
Lend can be followed by a reflexive pronoun and the preposition to. Reflexive pronouns refer to people, meaning "willingly agree to do something or participate in or conspire to do something"; Reflexive pronouns mean "suitable for a certain purpose, activity, etc."
I lent her some bread and she will bring me some more tomorrow.
I lent her some bread, and she will give me more tomorrow.
Third, the emphasis is different.
borrow
As a verb, borrow means to borrow something from someone or somewhere, and it can also be used as a metaphor.
lend
As a verb, Lend means to lend one's own things to others, which can also be used metaphorically.