Noun
1. the sport or activity swimming underwater
Test
1 / 5
Don't abuse that man, he can't help walking slowly.
2 / 5
A cat can see in the dark.
3 / 5
a frame with rows of sliding beads, used for doing arithmetic
4 / 5
The patient is complaining of pain in the abdomen.
5 / 5
absence from school
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