to apply oil

基本解释

If you want long and healthy hair, you have to apply oil .
實現頭發短時間內增長，你需要健康和平衡的飲食。
It is wise to apply the oil of refined politeness to the mechanisms of friendship.
智者將優雅禮貌的油塗抹在友誼的結搆。
It is vital to apply lubricating oil to the gears as this will not only help it run smoothly, but also protect it from dust.
重要的是適用於潤滑油的齒輪，因爲這不僅將有助於它順利地運行，而且還保護它免遭灰塵。

They work, they invest, they put their heads to the task, they apply technology, and pretty soon they'll discover how to extract oil profitably from oil sand.
FORBES: Capitalism's Amazing Resilience
That would apply not only to a huge number of geothermal sites, but also to many oil wells, which often bring up warm water from great depths along with their more valuable output.
ECONOMIST: Geologists are getting more juice out of the ground
Turn to oil, and the details are more nuanced, but the same price risk fundamentals apply for Beijing.
FORBES: Why China Will Stop U.S. Energy Independence