| 单词 | catheters |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔base〕The surgeon placed catheters through the veins and arteries near the base of the head.外科医生在脑根部的静脉和动脉中放置了导管。柯林斯高阶〔indwelling〕Indwelling catheters are used during labour following epidural anaesthesia.产妇生产时，可以在硬膜外麻醉之后使用留置导管。剑桥高阶 |
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