英和和英

a file

a file

a file

a file

unable to open file

to file

file in

visible files

overwrite that file

attach a file

an addition to a file

fill up a document

a file called {wording file}

to break the seal―（みだりに開封するの意味なら）―tamper with the seal

a file of letters＝a letter file

march out, in a file

Create a file

make up a document

to open documents with care

roll out the paper

an unsealed letter

shrinkwrap the CDs

The performance commences.

The curtain rises

The plays begins

to unseal

if the document is complete

to send a letter unsealed

in an open way

to extract the square root （of a number）