perder ímpetu

(v.) = lose + momentum, run out of + steam, lose + impetus

Ex. When the book was losing its momentum a new edition gave the volume new life.

Ex. However, after making some progress the revision committee seems to have run out of steam, and no firm proposals have yet been made.

Ex. The peace proposal is losing impetus dimming widespread hopes that the proposal had raised for an end to the 25-year guerrilla war.

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(v.) = lose + momentum, run out of + steam, lose + impetus

Ex: When the book was losing its momentum a new edition gave the volume new life.

Ex: However, after making some progress the revision committee seems to have run out of steam, and no firm proposals have yet been made.

Ex: The peace proposal is losing impetus dimming widespread hopes that the proposal had raised for an end to the 25-year guerrilla war.