perk up
昂首翘尾, 振作起来
例句与用法：
He looked depressed but perked up when his friends arrived.
他看上去无精打彩的，但朋友一来就精神起来了。
The horse perked up its head when I shouted.
我吆喝时那马扬起了头。
词形变化：
动词过去式: perked |
动词过去分词: perked |
动词现在分词: perking |
动词第三人称单数: perks |
活跃起来; 振作起来
After a few minutes, the students perked up and began a heated discussion.
过了几分钟, 学生们活跃起来, 开始了热烈的讨论。
perk upperk up1.■(重新)活跃起来,振作精神
perk up1.■(动物)昂起；翘起：The dog perked up its ears at the sound of its master's return.狗听见主人回来的声音竖起了耳朵。2.■(精力等)恢复过来：She perked up quickly after her illness.她病后恢复得很快。3.■(重新)活跃起来；振作起来；使活跃起来；使振作起来：Morale perked up immediately at the good news.听到这个好消息，士气立刻振作起来。4.■打扮；装饰；使漂亮(美观)：The new skirt the little girl wears is perked up with golden silk embroidery.那个小姑娘穿的裙子由于镶有金色丝绣而显得更漂亮了。
见:perk: perk up