請翻譯下列英文為中文:
Unless the policy otherwise provides, where there is a change of voyage, the insurer is
discharged from liability as from the time of change, that is to say, as from the time
when the determination to change it is manifested; and it is immaterial that the ship
may not in fact have left the course of voyage contemplated by the policy when the loss
occurs.(10 分)
This insurance covers the Vessel's proportion of salvage, salvage charges and/or general
average, reduced in respect of any under-insurance, but in case of general average
sacrifice of the Vessel the Assured may recover in respect of the whole loss without first
enforcing their right of contribution from other parties.
Adjustment to be according to the law and practice obtaining at the place where the
adventure ends, as if the contract of affreightment contained no special terms upon the
subject: but where the contract of affreightment so provides the adjustment shall be
according to the York-Antwerp Rules.(15 分)