Smooth-running
adj. 运转平稳的，有效运行的
🧩 词语组成解析
smooth
[smʊð]
adj. 光滑的;流畅的;柔软的;温和的，安详的;
vt. 使平滑;排除，消除;安抚，平息;使优雅;
vi. 变平和，变缓和;
n. 平地，平面;
running
['rʌnɪŋ]
n. 跑步;运转;流出;
adj. 跑着的;流动的;连续的;操作中的，运转着的;
v. 跑;运转(run的ing形式);
🗣️ 情景例句
We have a mideweek special. It's 12 dollars a day, 12 cents a mile, plus gas.
我们从星期二到星期四都有特价。一天12元，每英里加12分，含汽油在内。
Why torture yourself?
你这是何苦呢？
ammunition and 400 people went sliding and crashing down to the port side of the steeply listing ship.
弹药和400个人轰地一声滑向陡斜的左舷时，