Hi, I'm Dean. For the past seven years, I have worked for a foreign company, but we use Chinese as our working language. In recent years, I have been wanting to change my position and my ability to do this is limited by language. Now the sense of urgency is becoming more and more intense. I began to learn English and wrote English emails, read English articles, and recited words. But it’s difficult to improve my level of English. At work, how can I learn English faster and more efficiently? Please give me your proposal. Thanks!

and my advice: keep doing what you're doing, and if you have enough time you should also practice speaking with fluent English speakers. Buying an English textbook could help with grammar.