1 to go online

2 to put sth online

1 light ray

2 classifier: 条 tiáo

3 classifier: 道 dào

4 light

5 illumination

6 lighting (for a photograph)

1 online

1 to underline

2 bottom line

3 base line (in sports)

4 baseline

5 minimum

6 spy

7 plant

1 curve

2 curved line

3 indirect

4 in a roundabout way

1 one strand does not make a thread, one tree does not make a forest (idiom)

1 endlessly interesting (idiom)

2 very witty

1 use a long line to catch a big fish (idiom); a long-term plan for major returns

1 a kite with cut string (idiom); fig. gone beyond recall

1 side issues keep arising (idiom)