Spirantization
擦音化
🗣️ 情景例句
You couldn't pick a finer medical school than Michigan.
你再也找不到一所比Michigan大学更好的医学院了?
Have you taken a train?
你坐过火车吗？
l am vacuuming the floor now and have several shirts to iron.
我正在用真空吸尘器清理地板，还有好几件衬衫要熨。