Heteroglycan
杂聚糖, 杂多糖
🗣️ 情景例句
Thank you, Gerald.
谢谢你！Gerald。
They have different hopes.
他们有各自不同的愿望。
That's a big box. Is it heavy? Please let me help you.
这是个大盒子。重吗？让我来帮你。