It is very alcoholic, sometimes near the strength of port.它的酒精浓度很高，有时接近波尔图葡萄酒的浓度。There was a high level of alcohol in his blood at the time of the accident.事故发生时，他血液中的酒精浓度偏高。It can take a long time for blood alcohol levels to fall.血液中的酒精浓度需要很长时间才能降下来。