Ibd
离子束穿孔；炎症性肠病
🗣️ 情景例句
It's going to be hard, but give it your best shot.
事情会很难，你尽力而为就是了。
He spends a lot of time reading books on ecology.
他花了大量的时间阅读生态学方面的书籍。
You'll know our products better after this visit.
参观后您会对我们的产品有更深的了解。