象 rattle，gurgle；

[例句] 侍者把他们点的餐端了过来，格雷厄姆签了单。 The waiter returned with their order and Graham signed the bill.

[例句] 辛格尔顿是个牛皮大王，他自称有一条空手道黑带。 Singleton was a fantasist who claimed to have a karate blackbelt.