| 例句 |
The machine made a low-pitched hum.这台机器发出低沉的嗡嗡声。He kept his voice low-pitched in case someone was listening.他把声音放低以防被人听见。They talked quietly in low-pitched voices.他们用低沉的嗓音轻声交谈。With a low-pitched rumbling noise, the propeller began to rotate.伴随着低沉的隆隆声，螺旋桨开始旋转起来。He gave a low-pitched whistle.他低声吹了一下口哨。 |