We watched the boat sink beneath the waves.我们看着小船被波涛吞没。Their son watched helplessly as they vanished beneath the waves.他们的儿子无助地看着他们消失在大浪中。The dolphins disappeared beneath the waves.海豚消失在波涛中。The exhibition offers a fascinating glimpse at life beneath the waves.这个展览展示了精彩神奇的海底世界。