Power-saving
节能
🧩 词语组成解析
power
['paʊɚ]
n. [机]动力，功率;力量;政权，权力;强国，大国;
vt. 运转;用发动机发动;使…有力量;
vi. 靠动力行进;快速行进;
adj. 权力的;机械能的，电动的;用电力（或动力）发动的;
saving
['sevɪŋ]
n. 节约;节俭;储蓄金;挽救;
v. 拯救( save的现在分词);收集;保留;避免;
prep. 除…以外;
adj. 可取的，保存的;节省的，节约的;补偿的;救助的;
sav节省+ing名词后缀 → 节省，节约
🗣️ 情景例句
Now he's got his own trading company. Ann told me he made four million dollars last year.
现在他已有自己的贸易公司。安告诉我他去年赚了400万美元。
I'll rub your back with this brush.
我用这把刷子刷你的后背。
No, not very. You need a driving permit. Have you got one?
不，不很贵。你需要一个驾驶执照。你有没有？