🧩 词语组成解析
n. 正电子\\n[化] 正子; 正电子
n. X线断层摄影术\\n[医] X线体层照相术, X线断层照相术
scanner
['skænə]
n. 扫描器;扫描设备;检测装置;细查者;
🗣️ 情景例句
I've never been to the aquarium
我从来没有去过水族馆
We can offer a discount in progressive stages according to the size of the order.
根据订购数量的大小，我们可提供累进的折扣。
Though these large machines still exist, many of their functions have been taken over by small powerful personal computers, commonly known as PCs.
虽然这种大计算机仍然存在，但它们的许多功能已被体积小但功能齐全的个人电脑——即我们常说的PC机——所代替了。