Bopp
abbr. 双轴向聚丙烯（Biaxially-oriented Polypropylene）
🗣️ 情景例句
Keep right unless overtaking.
要靠右驾驶，除非超车。
Since we are likely to place sizable orders regularly we hope that you will make some special concessions.
由于我方将定期大批量订购，希望贵方作出一些特殊的让步。
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。