英和和英

open cover

an open window

an open ceiling

an open door

open the gate

a hinged door

to make a beginning―pave the way for something

to pave the way for something

to expand the chest

an open port

to open fire

open the door

an unsealed letter

to open a fan

an openwork door

reeve an opening

to open the curtain―raise the curtain―draw （back） the curtain

to open a package

undo the parcel

to open―begin―commence

open the lock of

to make a beginning

to open hostilities―commence hostile operations

close the window

open the zipper of

to open the gate

raise the window

unlock the door

throw the door open

to open the door