Ibd
离子束穿孔；炎症性肠病
🗣️ 情景例句
Canada has the most beautiful waterfalls in the world.
加拿大有世界上最壮观的瀑布。
I found an excellent position through an employment agency.
我通过职业介绍所找到了一份很棒的工作。
I'm doing great.
我过得很好。