"threaten one's efforts" — Collocation dictionary inglés

Automatic translation (We do not guarantee its correctness): grozić czyjś wysiłki
  1. threaten verbo + effort sustantivo
    Very loose collocation

    Mikhail S. Gorbachev, the Soviet leader, has warned that ethnic tensions could be "disastrous" because they threaten his efforts to reshape the Soviet Union.

    Similar collocations: