生死关头的肝移植手术才挽救了他的生命。
每当迫近太鲸，进行生死关头的决斗时，他总漫不经心地、随随便便地拿起他那支无情的鱼枪，赛似一个一边吹哨，一边使锤子的补锅匠。
When close to the whale, in the very death-lock of the fight, he handled his unpitying lance coolly and offhandedly as a whistling tinker his hammer.
这个生病的小姑娘整夜躺在床上，处于生死关头，直到退烧才脱险。
The little sick girl lay all night between life and death until her fever was gone.
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