贯通
(貫通)to link up; to be well versed in
Example Sentences
经过工程建设者四年的艰苦鏖战，这条穿越崇山峻岭的高速特长隧道终于全线贯通。
jīng guò gōng chéng jiàn shè zhě sì nián de jiān kǔ áo zhàn, zhè tiáo chuān yuè chóng shān jùn lǐng de gāo sù tè cháng suì dào zhōng yú quán xiàn guàn tōng.
After four years of hard work by the project builders, this high-speed extra-long tunnel through the mountains has finally been completed.
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