小狗在草地上欢快地嬉戏玩耍。
The puppies ___frolic cheerfully on the grassy field.
孩子们在海滩上嬉戏玩耍，追逐着海浪。
The children ___frolicked on the beach, chasing the waves.
孩子们在沙滩上欢快地嬉戏玩耍。
The children were ___frolicking happily on the beach.
浙公网安备33010902004675号