Ibd
离子束穿孔；炎症性肠病
🗣️ 情景例句
Look before you leap.
三思而后行。
Please sit down and have a glass of juice.
请坐下来喝一杯果汁。
Cave exploration, or pot-holing, as it has come to be known, is a relatively new sport.
洞穴勘查——或洞穴勘探——是一项比较新的体育活动。