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| at the leading edge (Anglophile); on the front lines (slitely_mad); at the cutting edge (on the cutting edge Alex89); on the cutting edge (at the cutting edge Alex89); at the forefront (MichaelBurov) | |||
| ahead of the curve (VLZ_58) | |||
| cutting edge (MichaelBurov); cutting-edge (MichaelBurov); at the cutting edge (MichaelBurov) | |||
| на переднем крае: 34 phrases in 17 subjects |