"Ghost nets" are a serious problem along Australia's northern coastline; they can extend for
more several hundred meters in length.
为什么不是extend to ? 而是extend for 呢?
我查询了词典,有如下2个例句:
The caves extend for some 12 miles.
这些洞穴延伸约12英里。
来源:《柯林斯英汉双解大词典》
The main stem will extend to around 12 ft, if left to develop naturally.
如果让其自然生长,主干会延伸到12英尺左右。
来源:《柯林斯英汉双解大词典》
所以,我搞糊涂了,究竟是extend to 还是 for 呢?
The main stem will extend to around 12 ft, if left to develop naturally.
如果让其自然生长,主干会延伸到12英尺左右。
(1) extend for +时间名词 (表示持续/延续时间长度),+长度名词(表示延神长度)
The show has been extended for another six weeks.展览会又延长了六周。
The caves extend for some 18 kilometers.那些洞穴深约18公里。
(2) extend to +长度名词(表示延神具体长度是多少)
The table extends to 220 centimeters. 桌子伸展后长220厘米。
The main stem will extend to around 12ft, if left to develop naturally.如果任其自然生长,主干可以长到约12英尺。
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