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...a 30-foot extension cord... 30是什么意思？

...a 30-foot extension cord... 30

英尺的延长线

相关词汇
extension cord

extension

n. 伸展，扩大，延长，延期，[医]牵引，电话分机；
例句
He will appeal to the state for an extension of unemployment benefits...
他将呼吁国家延长领取失业救济金的时限。

cord

n. （细）绳，灯心绒裤；vt. 用绳子捆绑，堆积（柴薪）；
例句
Bind the ends of the cord together with thread.
用线把这根绳子的两端捆扎起来。
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
He treated us as autonomous individuals who had to learn to make up our own minds about important issues.
他把我们当作独立自主的个体来看待，认为我们必须学会在重大问题面前自己拿主意。
The press conference simply provided more fodder for another attack on his character...
记者招待会只不过是提供了更多的再次击他人格的口实。
...a heart surgeon.
心脏外科医师
Mars was visible, dead in the centre of the telescope...
可以看得见火星，就在望远镜的正中央。
The authorities took time to pronounce their verdicts...
当局斟酌权衡再三才宣布他们的决定。
Sugary canned drinks rot your teeth.
罐装的甜饮料会腐蚀牙齿。
The NCAA basketball championship was won by North Carolina.
北卡罗来纳大学在美国大学篮球联赛中夺魁。
...dog hairs on the carpet.
地毯上的狗毛
Thousands of Ukrainians burst into cries of 'bravo' on the steps of the parliament...
成千上万的乌克兰人聚集在议会门前高喊“好啊”。
Trim any tough or woody stalks from the asparagus.
剪掉芦笋上粗硬或老掉的梗子。