183-又周五啦 一周真快 我学了？我没学？呜呜呜

to injure sb is to hurt sb

an operation

he's going to have an operation on his knee next week.

don't worry,i've done this operation hundreds of times.

she's got the flu

to note

if people note something they pay attention to it

i carefully noted the boarding time of my flight after getting the ticket

please note that the meeting will begin on time. don't be late