Deadheading
(deadhead 的现在分词) n. 免费乘客, 免费入场者
🗣️ 情景例句
Don't waste your school years, son, they can determine your future.
孩子，别荒废你的学业，它们对你的未来有决定作用。
All produets have to go through five checks in the whole process.
所有产品在整个生产过程中得通过五道质量检查关。
I'll get back to you as soon as I can.
我会尽快给你回音。