However, the treatment with topical eardrops must not be used to replace proper cleaning of the ear or a necessary operation.

对于慢性中耳炎的治疗，耳滴剂的使用绝不能替换局部治疗或必要的手术。

youdao

However, the treatment with topical eardrops must not be used to replace proper cleaning of the ear or a necessary operation.

对于慢性中耳炎的治疗，耳滴剂的使用绝不能取代局部治疗或必要的手术。

youdao

While the original aim was to raise the hull if at all feasible, the operation was not given the go-ahead until January 1982, when all the necessary information was available.

虽然最初的目标是在可行的情况下提高船体，但是直到1982年1月所有必要信息都具备时，这项行动才得到批准。

youdao

While debt is fundamentally necessary to the operation of a national government, it is increasingly clear that debt can be limiting and dangerous.

FORBES: How Debt Limits A Country's Options

CCiCap was devised for the purpose of identifying a complete launch system - not just a crew "taxi", but a rocket to launch it, and all the necessary ground support operation.

BBC: Nasa announces space shuttle replacement shortlist

This level of co-operation is necessary to allow Iraqi officials to provide for the security of the inspectors.

BBC: Iraq arms teams under pressure