1 vitamin

1 to tie

2 to fasten

3 to button up

1 connection

2 contact

3 relation

4 to get in touch with

5 to integrate

6 to link

7 to touch

1 three-dimensional

2 3D

1 two-dimensional barcode

2 QR code

1 everyone participates in reforms (idiom)

2 to replace the old with new

3 to reform and start afresh

1 to have difficulty walking (idiom)

2 to walk with difficulty

1 to make progress only with great difficulty (idiom)

1 lit. whoever hung the bell on the tiger's neck must untie it (idiom)

2 fig. whoever started the trouble should end it

1 no room to advance or to retreat (idiom); without any way out of a dilemma

2 trapped

3 in an impossible situation