Pneogaster
(胚的)呼吸道
🗣️ 情景例句
She is making steady progress in her learning.
她在学习中不断进步。
My book has a dark blue cover.
我的书有一个深蓝色的封面。
The demand for our products has kept rising.
要求定购我们产品的人越来越多。