原文中文
少年易老学难成，一寸光阴不可轻。
未觉池塘春草梦，阶前梧叶已秋声。
The autumn leaves have already fallen by the steps
秋叶已然落在台阶之上
句子使用现在完成时表达已完成的状态变化。
Youth ages quickly and learning is hard to achieve; not even a tiny bit of time should be taken lightly.
Before one even realizes the spring grass is dreaming in the pond, The autumn leaves have already fallen by the steps.
少年易老学难成，一寸光阴不可轻。
未觉池塘春草梦，阶前梧叶已秋声。