" Then I wish he war let blood for 't, that's all, " said John, grimly.

“那我希望他能为‘流血’而战，仅此而已，”约翰冷酷地说。

He was then rushed to hospital where he went through a series of torment-he got injected to let the contaminated blood out.

他立即被送往医院抢救，经过及时的救治——他被注射了一针可以让污血流出来的药剂。

This early surgery involved drilling a hole in the skull to let blood escape and relieve pressure on the brain.

这种早期手术包括在头骨上钻一个洞，让血液流出并减轻大脑压力。

For 3,000 years, people have been cut or given leeches to let out the blood because they thought that would make people better.

在长达3000年的时间里，人们划破皮肤放血或使用水蛭吸血，因为他们认为放血能够改善他们的身体。