把某事包起来秘而不宣, 不作张扬, 掩盖的英文

hush sth up

• 把:    grip; handle
• 某:    certain; some
• 包:    wrap
• 起来:    stand up; sit up; ...
• 秘而不宣:    keep sth. secret; ...
• 不:    a block of wood
• 作:    rise; get up; stan ...
• 张扬:    make widely known; ...
• 掩盖:    cover; conceal; bl ...