breaststroke
noun [ S or U ] uk/ˈbrest.strəʊk/ us/ˈbrest.stroʊk/
蛙泳
a way of swimming in which the arms make a circular movement in front of the body while the knees are brought up towards the body and then kicked out and back
I can only do the breaststroke. 我只会蛙泳。