It was fine and hot.
I felt better and went to work.
My colleague next to me offered the vitamin C contained drink worrying about my health. How sweet she is!
At the office kitchen when I happened to enter there, somebody was cutting a pineapple. Then she offered me to taste it. It was sweet.
Sweet has many meanings.
In the third paragraph, it means kind or nice. It is yasashii(優しい) in Japanese.
In the fourth sentence it means the taste like sugar. It is amai (甘い) in Japanese.