The phrase "without opening up" is correct and can be used in written English.
It means to not disclose or reveal something or to not become emotionally vulnerable. Example sentence: "I wanted to tell her about my struggles, but I was afraid of without opening up too much."
We know that we have to reduce his efficiency without opening up others to be more efficient.
She is also a polarising personality who is engaged in one of the most delicate political operations imaginable, creating a distance from her husband without opening up a rift with him.
These countries can't survive without opening up to global investment, the Internet, modern education and emancipation of their women so that they will not be competing with just half of their populations.
His chords were almost always two handed, without opening up into single-note passages, and he kept the sustain pedal down for an extraordinarily long time, building clouds of sound and extra accents around a clave rhythm deep in the heart of the music.
The custom permissions can be added to the.NET Framework without opening up the security system, provided that one makes no security mistakes in the coding of the permissions.
There is even an Assistant tool that lets you search Internet radio, or check stock movements, without opening up your browser.
Making these airports "work better could support the Osa's ecotourism model without potentially opening up the region to major over-development," Ms. Herrera said.
You can also take photos of yourself without ever opening up the phone since the camera is located on the front flap.
Today, you need a Twitter account to sign up to Moped but that will soon change, with the ability to sign up without Twitter, opening up Moped for more users.
"We played well for a large part of the game, kept the ball and dominated the possession stats and chance stats without really opening up that one clinical moment to finish it.
Yet without reform and opening up, the Chinese miracle simply wouldn't have occurred.
