It can be said that there is a banker who never makes mistakes, but there is no trader who never makes mistakes unless he works for a short time and wants to make mistakes.
Making mistakes twice in three months is a bit much, and it is "a great loss". Be careful. If you make another mistake, it's hard not to be fired unless you are a relative of the manager.
An old hand should teach you some basic knowledge of customs declaration. For example, don't say "buy" and "sell" in business, but say "buy" and "sell" to avoid misunderstanding. There is also the difference between reporting 4 hands and 10 hands. Ask an old hand how to report it. If she tells you it's "four" and "ten", she will also fail. ......