用法:
1 sing joyfully 欢乐地唱.

用法:
2 (usu 通常作 go carolling) sing Christmas carols 去唱圣诞颂歌:
We often go carolling (ie go from house to house, singing carols) at Christmas. 我们在圣诞节常去唱颂歌（挨门挨户唱颂歌）.

• in accord with(in accordance with)
• in accordance with(according to)
• in advance of(in front of)
• in all sense(in every sense)
• in an extremity(in extremities)
• in behalf of(on behalf of)
• in bloom(in full bloom, in blossom, in full blossom)
• in bud(in the bud)
• in business(on business)
• in care of(in the care of)
• in care of(under the care of)
• in case of(for fear of)
• in case of(in the case of)
• in case(just in case)
• in charge of(in/under the charge of)
• in command of(in/under the command of)
• in commission(on commission)
• in company with(in the company with)
• in contrast to(in contrast with)
• in control of(in/under the control of)
• in control(under control)
• in convey(under convey)
• in course of time(in the course of time)
• in course of(in the course of)
• in credit(on credit)