请教这句里的where的用法Where the importer of the import goods fails to declare the import goods to the Customs within three months of the declaration of the arrival of the means of trasport,the goods shall be taken over and sold off by the C

请教这句里的where的用法Where the importer of the import goods fails to declare the import goods to the Customs within three months of the declaration of the arrival of the means of trasport,the goods shall be taken over and sold off by the C
请教这句里的where的用法
Where the importer of the import goods fails to declare the import goods to the Customs within three months of the declaration of the arrival of the means of trasport,the goods shall be taken over and sold off by the Customs according to law.
这里句首的where是什么用法

请教这句里的where的用法Where the importer of the import goods fails to declare the import goods to the Customs within three months of the declaration of the arrival of the means of trasport,the goods shall be taken over and sold off by the C
参见用法5
where用作连接副词,where用作关系副词,引导定语从句
where用于引申意义,where引导名词性从句,相当于the place （point）,
where 的用法
【用法1】 where用作疑问副词,在(往、从)哪里,在什么地方:
Where are you?你在哪儿?
Where did you get the computer (form)?你从哪儿弄到这台电脑的?
Where did you study medicine?你从哪儿学的医?
【用法2】where用作连接副词,引导下列从句：
Where bees are,there is honey.〔状语从句〕哪儿有蜜蜂哪儿就有蜜.
I’m going to do what I like and go where I like.〔状语从句〕我要做我想做的事,去我想去的地方.
I wonder where she lives.〔宾语从句〕我想知道她住在哪里.
It’s really no business of yours where I spend my summer.〔主语从句〕
我真不知道她去哪儿了.
I really have no idea where she has gone.〔同位语从句〕我真不知道她去哪儿了.
The problem is where we should put the vase.〔表语从句〕问题是我们把花瓶放在哪里呢.
【用法3】where用作关系副词,引导定语从句:
England is one of the few countries where (=in which) people drive on the left.英国是少数沿左侧开车的国家之一.
We then moved to Paris,where we lived for six years.我们后来搬到巴黎,在那里住了六年.
【用法4】where用于引申意义:
Where will all this trouble lead?( =What result will it have?) 这件麻烦的事会惹出什么结果?
The crisis has reached a point where the receiver will have to be called in.危机已经到达非把破产管理人叫来不可的地步.
Where others are weak,he is strong.别人的弱点正是他的优势.
Where the money is,there’s the power.有钱就有势.
Can you succeed where others failed?别人干砸的事情,你能干成吗?
【用法5】where引导名词性从句,相当于the place （point）where：
A bird had settled on a tree close to where I was standing.鸟儿栖息在离我站的地方很近的一棵树上.
That’s where the battle took place.那儿就是那场战役发生的地方.
The car is where you parked it.车子还在你停放的地方.
That’s where we differ.这就是我们的分歧所在.
That’s just where we basically disagree with him.这就是我们同他的根本分歧点.
This is where we help each other.我们就在这方面互相帮助.
That’s where you are wrong.你错就错在这儿.

如果没记错的话,那一句话应该是主语从句,,什么用法,,不太懂,我好像没学过.

引导地点状语从句，翻译为“在……的地方”；“当出现……的情况时”

这里应该是WHEN

where可以用作连词,=in the place in which.
比如where food is hard to find,few birds remain和本句的用法是一样的.