Backfiller
[机] 回填机
🗣️ 情景例句
I don't know.
我也说不上来。
Sorry, they are already full.
抱歉，全部满了。
Then see which plants grow higher, measure them with a ruler and write down your results.
过后看看哪种西红柿长得比较高，用尺子量量并记录下你的实验结果。