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 ten million

2 countless

3 many

4 one must by all means

1 magnificent army with thousands of men and horses (idiom); impressive display of manpower

2 all the King's horses and all the King's men

1 (line of) thought

2 thinking

1 Sina, Chinese web portal and online media company

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

1 small capital, huge profit (idiom); to put in a little and get a lot out

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 to control a key point is to be master of the situation (idiom)