Bifidum
双歧杆菌
🗣️ 情景例句
Sunrises. Stretch it out. Flat back.
双手捧日。尽量伸展。平背拉回。
The friar preached against stealing and had a goose in his sleeve.
嘴上真君子，行动烂小人。
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。