tune
n.曲调,曲子 vt.为(乐器)调音;调节
Sam was humming a little tune .
萨姆在哼着一首小曲。
turbulent
a.动荡的,混乱的;汹涌的,狂暴的
the turbulent times of the French Revolution
法国大革命的动荡时期
twist
v.缠绕;转动;捻;曲折前进 n.弯曲;转折
He twisted his head slightly, and looked up at her.
他微微扭过头,抬眼看着她。
volunteer
n.志愿者(兵) vt.自愿(做;提供) vi.自愿
Most of the relief work was done by volunteers.
大部分救援工作都由志愿人员进行。