His weak voice was almost inaudible.

他声音微弱得几乎听不到。

The Duchess began in a low, weak voice.

公爵夫人用低沉的、微弱的声音说。

It's a faintingly weak voice.

像是快晕厥的软弱声音。

'Mr.Harmsworth,' I said in a weak voice.

“哈姆斯·沃斯先生，”我无力地说。

Can I help you? "the colorful flower said in a weak voice."

彩虹色的花用虚弱的声音说：“我能帮你什么忙吗？”