mount up
US /ˈmaʊnt ʌp/
UK /ˈmaʊnt ʌp/
句動詞
増える, 積み重なる
to increase gradually in amount or number
例:
•
The costs of the project began to mount up rapidly.
プロジェクトの費用は急速に増え始めた。
•
The evidence against him continued to mount up.
彼に対する証拠は増え続けた。