Propionin
丙酸菌素
🗣️ 情景例句
Make sure you file this invoice straight away; I don't want it being misplaced.
记得现在就把发票给开了，我可不想弄错了。
I'll call you up later.
我稍后会打电话给你。
They could be saved so much misery and expense if they chose to live in the city where they rightly belong.
要是他们愿意住在本来属于他们的城市，则可以让他们省去诸多不便与节约大量开支。