The heat was unbearable, as it usually was. I was carrying two half-liter bottles of water, one in each hand.
和往常一样，酷热难挡，我一手拿着一瓶水。
2
They say risk of death before age 55 among those who drank three or more half-liter bottles of vodka a week was 35 percent.
他们说，55岁之前的死亡的风险对于那些每周喝三瓶或更多瓶半公升装的伏特加酒的人为35%。
3
There are a couple of reasons why a big 4.0-liter engine has eight half-liter cylinders rather than one big 4-liter cylinder. The main reason is smoothness.