Polyenanthoamide
聚庚酰胺
🗣️ 情景例句
I hear that you have a Italy Symphony Orchestra concert on the 15th evening.
听说15号晚上意大利交响乐团要在贵院演奏。
It is better to do well than to say well.
理论好不如实际好。
We've already had a big demand for this product.
这种产品我们已有很大的需要求量。