well-practicedCOCA⁸⁰²⁰² 例句 Since definitive trauma care is usually not available at a Level IV center, a well-practiced mechanism must be in place to ensure prompt transfer to a higher level of care. 因为对伤员的最终救治在四级中心是达不到的，所以一个确保向上级机构转送的有效机制也是必不可少的。 med66