Polyphenyloprene
聚苯基丁二烯
🗣️ 情景例句
have been busy at work this morning
一早上都在忙着
To plan a vacation trip.
计划休假的旅行。
Soon the errors will have multiplied to the ten-foot scale,
很快这种偏差会增加到10 英尺的范围，