Pma
[化] 均苯四酸
🗣️ 情景例句
I don't like to waste my time chatting on the net.
我不想把时间浪费在网络聊天上。
East or west,home is best.
东也好，西也好，还是家中最好；金窝银窝，不如家里的草窝。
John works in a factory about ten kilometres from his home.
约翰在一家距离他家大约 10公里远的工厂工作。