troop into 涌入
troop in groups 成群结队地
march in troops 像队伍一样行进
A: Did they all troop into the classroom at once?
A：他们是一下子全都涌进教室的吗？
B: Yes, they were excited about the field trip.
B：是的，他们对郊游感到非常兴奋。
1) 成群结队地移动
2) 涌向某地
3) 像队伍一样行进
1. 成群结队地移动，涌向
verb
1. To move or arrive in a large group.
Synonym: march, flock, swarm