Dexa
abbr. dextranase gene 葡聚糖酶基因
🗣️ 情景例句
using as many letters as possible.
尽可能多用字母，
The mechanic repairs cars.
机工修理汽车。
There is a zoo, an art museum, a boating lake, a smaller lake for model boats and, in winter, an ice-skating area.
还有一个动物园、一座艺术博物馆，一个供人划船用的湖。另有一个比较小的湖，供人们玩模型船艇，冬天就成为滑冰场。