Optimum spark advance
[机] 最适宜的火花提前
🧩 词语组成解析
spark
[spɑrk]
n. 燃烧的颗粒;火星，火花，余火;（金属的）发光的颗粒;电火花;
vi. 发出火星，发出闪光;热烈赞同;正常运转;
vt. 发动，触发;激起运动，鼓舞;
advance
[əd'væns]
vt. （使）前进;将…提前;预付;提出;
vi. （数量等）增加;向前推（至下一步）;上涨;
n. 增长;借款;（价格、价值的）上涨;预付款;
adj. 预先的;先行的;
ab(from)+ance(before)→前进
🗣️ 情景例句
These items shouldn't be difficult to come by
这些东西应该是不难弄到的，
He who has not tasted bitter knows not what sweet is.
不吃苦中苦，哪知甜中甜。
Before he retired, Frank was the head of a very large business company, but as a boy he used to work in a small shop.
在退休前，弗兰克是一家非常大的商业公司的经理，但他小时候却在一家小铺里做工。