词义辨析：energetic, vigorous, active, brisk, lively
energetic 指精力充沛、奋力从事某事业。
vigorous 指不仅表现积极、有生气，而且固有精力和活力十分旺盛。
active 指有活动能力，强调与消极或休止相反的积极活动状态。
brisk 指动作敏捷、充满活力、轻快活泼地从事某项工作或活动。
lively 侧重指轻快，机智，有生气。
For all his years, he was none the less active and energetic.
他虽年事已高,但仍生气勃勃,精力旺盛。