Lifespans
n. （人或动物的）寿命( lifespan的复数形式 ); 存在期; 使用期; 有效期
🗣️ 情景例句
I'm afraid i have a complaint to make.
恐怕我要提点意见。
No one is a fool always, every one sometimes.
无人总是当傻瓜，人人有时当傻瓜。
Though Mr.Thompson had turned the lights off before he went to bed, they were on in the morning.
虽然汤普森临睡觉时把灯关了，但早晨灯却都亮着。