my travel recently, it is very hot in Beijing. so i spend the all weekend at home. though i should go shoping for some thing, which is needed for my travel. around July 12 , i will go to london ,fullowing my supervisor. this time, my supervisor bring the undergraduate students to london to go abroad on a tour of investigation. but my supervisor hope i can follow him, one reason he hope i can help him take care the students, another reason, i can expand my horizons. it's good for me. right? but i am afraid that my poor english level will affect this travel.