A cover letter needs signature and time. \x0d\ Signature and date: \x0d\ The writer's name and date are written in the lower right corner of the letter. Write the name on it and the date on the bottom. There is no need to add any modest qualifier before the name, so as not to feel flattering or make the other party despise the ability of the job seeker. The date of writing should be year, month and day. Signature: including signature and date. The signature should be written on the right back of the next line of the closing statement. Write the date (X year X month X day) under the name. If there is an attachment, please indicate it in the lower left corner of the letter. For example, "attachment 1: resume", "attachment 2: report form" and so on. \x0d\\x0d\ Writing principle of cover letter: \x0d\ Natural tone: language and sentences should be simple and clear. Writing letters is like talking. The tone can be formal but not rigid. Speak directly, don't rely on a dictionary. \x0d\\x0d\ Easy to understand: When writing, you should consider the reader's knowledge background, and don't use uncommon words and technical terms. \x0d\ Concise and to the point: try to be concise on the premise that the key points are prominent and the content is complete, and don't cover everything. \x0d\ Be specific: Don't use vague and general words; Use examples, charts and other specific instructions.