HSK 7–9 · verb
垫底
to be at the bottom; to serve as a base
他跑得最慢，比赛总是垫底。
Tā pǎo de zuì màn， bǐsài zǒngshì diàndǐ。
He runs the slowest and is always at the bottom in races.
HSK 7–9 · verb
to be at the bottom; to serve as a base
他跑得最慢，比赛总是垫底。
Tā pǎo de zuì màn， bǐsài zǒngshì diàndǐ。
He runs the slowest and is always at the bottom in races.