Dextran
n. 右旋糖酐\\n[化] 葡聚糖; 右旋糖酐
🗣️ 情景例句
Yes, it is. Come up.
是的 是我。请上来
That deep sigh could only express Helen's sadness.
那深深的叹息，不外乎表示出海伦的悲哀。
One moring she was working at her desk in the library when a boy came in.
一天早上，她正在图书馆里伏案工作，这时，一个男孩走进来。