Meaning of xiàn:
线
thread; variant of 線|线[xian4]; string; wire; line; CL:條|条[tiao2],股[gu3],根[gen1]; (after a number) tier (unofficial ranking of a Chinese city)
Wǒ xūyào yī gēn zhēn hé yīxiē xiàn lái féngbǔ yīfú.
我需要一根针和一些线来缝补衣服。
I need a needle and some thread to mend the clothes.
Tā zhèngzài yòng xiùhuā xiàn xiù yī fú měilì de tú'àn.
她正在用绣花线绣一幅美丽的图案。
She is using embroidery thread to sew a beautiful pattern.
Zhè tiáo hóngsè de xiàn hěn cháng.
这条红色的线很长。
This red string is very long.
Diàngōng zài xiūlǐ diànxiàn.
电工在修理电线。
The electrician is repairing the electric wire.
Huǒchē de gāotiě xiàn fēicháng ānquán.
火车的高铁线非常安全。
The train's high-speed rail line is very safe.
Zhè tiáo hóngsè de xiàn fēicháng cháng.
这条红色的线非常长。
This red line is very long.
Zài Zhōngguó, gēnjù fāzhǎn chéngdù kěyǐ bǎ chéngshì fēn wéi yī èr sān sì xiàn chéngshì.
在中国,根据发展程度可以把城市分为一二三四线城市。
In China, cities can be classified into first, second, third, and fourth tiers based on their development levels.