| 上线 | 
shàng xiàn | 
to go online; to put sth online / to reach a specific standard / to put into production / handler (person who oversees and directs the activities of another person in a gang, spy ring etc) | 
| 上 | 
shǎng | 
used in 上声 | 
| 上 | 
shàng | 
(bound form) up; upper; above; previous / first (of multiple parts) / to climb; to get onto; to go up / to attend (class or university) / (directional complement) up / (noun suffix) on; above | 
|  线 | 
xiàn | 
variant of 线 | 
|  线 | 
xiàn | 
thread / string / wire / line / CL:条,股,根 / (after a number) tier (unofficial ranking of a Chinese city) |