His heart sank at the thought of war.

想战争他的情绪显得十分低沉。

It's no use letting yourself fall into the dumps.

听任自己的情绪低沉下去一点用也有。

Her mood threw a dinge even over her students.

她的忧郁甚至弄得她的学生都情绪低沉。

Flight naif come of Flight see is sool Flight of HongKong is now border.

嗬！（低沉的语气词）是我，告诉我，有有爱过我。

Her voice was low and shaky with emotion.

她的声音低沉，因激动而有些颤抖。

Her words were inward and indistinct when she was in a state of half unconsciousness.

"她处于半昏迷状态时,她说话的声音低沉,模糊不清。"

He gave a hollow laugh.

他发出低沉空洞的笑声。

A Deep chesty bawl echoes from rimrock to rimrock, rolls down the mountain, and fades into the far blackness of the night.

一个发自肺腑的低沉而又尖厉的号叫在大山深处回荡，最后划过大山，消逝在远方深沉的夜色中。