The daily work of rolling out malaria control programmes is invisible. It's not front page news.

日常开展疟疾控制规划工作不是头版新闻，往往不为人知。

youdao

Road is like an invisible magician. He will present beautiful rainbow on the journey from time to time, showing pleasant sceneries in front of your eyes.

“路”像是无形的魔术师，它会在沿途不时变化出美丽的彩虹，为旅程增加美丽色彩；

youdao

When you are in front of the emperor you'd better do business right away, because coming back and crossing those walls, real walls and invisible walls, will be very difficult.

当你站在决策者面前，你最好是马上达成交易，因为再回来，穿越那些墙，有形的无形的墙，将会非常困难。

youdao

The signature Buick engine compartment ports have migrated up to the top of the front fenders, unfortunately invisible from the side of the vehicle.

FORBES: 2012 Buick Verano Test Drive And Review: No Kidding; A New Buick

The TelePrompTer projects the text in front of the newscaster so that it is easily seen by the anchor, but is invisible to the viewers.

FORBES: PowerPoint Is NOT a TelePrompTer