我都教了一辈子课了
“I've been teaching my whole life,”
THE DIALOGUE REEL
难道有分身术吗
“unless she can be in two places at once.”
我都教了 一辈子 课了
“I've been teaching my whole life,”
“and I've never once misidentified a student.”
“Trust me, I have decades of experience; there is no way my eyes are playing tricks on me.”
In Chinese culture, extensive tenure and age (especially in respected professions like teaching) confer unquestioned empirical authority and credibility.
LEARNING CHUNKS & PARTICLES
already ... (emphasizing extent or degree)
Used to emphasize an extreme duration, age, or quantity to justify a claim.
a lifetime / all one's life
Frequently used hyperbolically or literally to highlight immense experience or dedication.
Combined with '都' to emphasize the cumulative duration of a lifelong career.