Pellis
(担子菌)皮层
🗣️ 情景例句
I am, Mom.
我确实感到骄傲， 妈妈。
You've done me a great favour.
您帮了我大忙。
becomes so worn and unreliable that it eventually is not worth mending.
磨损太厉害，老得一点儿也不准了，最终会不值得修理了。