Valvetrain
气门
🗣️ 情景例句
In face, Australia is the only country that is also a continent.
事实上，澳大利亚是唯一作为洲的国家。
Let's see what else is on.
咱们看看有没有别的节目。
I lost the door key about here.
我在这附近掉了门钥匙。