1 to go online

2 to connect to the Internet

3 (of a document etc) to be uploaded to the Internet

4 (tennis, volleyball etc) to move in close to the net

1 Sina, Chinese web portal and online media company

1 to have sth to do with

2 to relate to

3 related to

4 to concern

5 concerning

1 unrelated

2 having nothing to do (with sth else)

1 related

2 relevant

3 pertinent

4 to be interrelated

5 (statistics) correlation

1 one man can hold the pass against ten thousand enemies (idiom)

1 lit. to catch everything in the one net (idiom)

2 fig. to scoop up the whole lot

3 to capture them all in one go

1 lit. either the fish dies or the net gets torn (idiom)

2 fig. it's a life-and-death struggle

3 it's either him or me

1 a matter of no concern to oneself (idiom)

1 to feel unconcerned and let matters rest (idiom)