Plasticon
聚苯乙烯薄膜; 聚苯乙烯薄膜
🗣️ 情景例句
Learning to express oneself well in an important part of education.
学会把意思表达清楚是受教育的一个重要方面。
John could not decide when to leave.
约翰无法决定几时要出发。
the editor was getting impatient, for the magazine would soon go to press.
在此期间，编辑等得不耐烦了，因为杂志马上要付印。