Valvetrain
气门
🗣️ 情景例句
You are not going to be able to move after this and the aerobics class.
你会动都动不了的。在你做完这个后又去上有氧运动课之后。
Riches have wings.
财富难保。
The baby was about ten months old. At first she was asleep.
那小孩大约10个月大。最初，她是睡着的。