But a vibrant recess is like grease for a school 's gears .
但是一次好的休息对学校来说就如同是齿轮上的润滑油。
Although he had washed them carefully grease from the bicycle frames left dark stains under the nails .
手上沾的自行车润滑油虽然已经仔细洗过,指甲里的黑色污渍还是没洗掉。
Most elections pump a little campaign money into the economy , providing much needed grease for the political wheels .
世上的大部分选举都会将一部分选战资金注入到经济中,为政治机器提供急需的润滑油。
Cooking grease , excessive food waste , and trash in sink drains and disposals can accumulate in city sewer lines and cause blockages that create sewage overflows into the ocean .