get up (或 pick up) steam

generate enough pressure to drive a steam engine

開足蒸汽驅動發動機

(of a project in its early stages) gradually gain more impetus and driving force

（計劃的早期）逐漸獲得驅動力

his campaign steadily picked up steam.

他的競選活動穩步地獲得越來越多的動力。

have steam coming out of one's ears

(informal)be extremely angry or irritated

(非正式)大發雷霆，非常惱怒

in steam

(of a steam locomotive) ready for work, with steam in the boiler

（蒸汽機車）準備工作，準備發動，一切就緒

let (或 blow) off steam

(informal)(of a person) get rid of pent-up energy or strong emotion

(非正式)發泄被壓抑的感情；泄怒

run out of (或 lose) steam

(informal)lose impetus or enthusiasm

(非正式)失去動力；失去熱情

a rebellion that had run out of steam.

沒了勁的反叛。

under one's own steam

(with reference to travel) without assistance from others

（旅行）靠自己的力量

we're going to have to get there under our own steam.

我們必須靠自己的力量到達那里。

under steam

(of a machine) being operated by steam

（機器）靠蒸氣運行