我一开始并没有收到邀请通知，因为我没有进入课程团队，我一直都是同学邀请

I did not receive the invitation notice at the beginning because I did not join the course team. I have always been invited by my classmates. Today I sent you a message saying that I did not enter, but then my classmates invited me to enter. I am now I have joined this team, thank you very much, professor!

I did not receive the invitation notice at first, because I did not enter the course team, I have been invited by classmates to enter, today I started to send you a message that did not enter, but then students invited me to enter, I have now joined the team, thank you very much professor!

I didn't receive the invitation notice at the beginning, because I didn't enter the course team. I was always invited by my classmates. Today, I sent you a message saying that I didn't enter. But later, my classmates invited me to join the team. Thank you very much!<br>