1.supporting part/role/actor etcAMAPa small part in a play or film, or the actor who plays such a part 配角(演员)
Examples from the Corpus
supporting part/role/actor etc• At a crucialmoment, the United States played an important supporting role.• Its most unarguablesuccesses are in the mainsupporting roles.• The meats are unfailingly tender and flavorful, and the stuffedtomatoesdeserve a TonyAward for best supporting actor.• The three supporting roles are all superbly played.• Hopperwon a supporting role in that film too.• Benicio Del Toro won the best supporting actorprize for Traffic.• But the chiefjoy despite several eye-catchingsupporting roles remains watching Courtenay milk the script for all its worth.• He felt the other two were satisfied to play supporting roles to Gedge and to a lesser extent, himself.
2.supporting wall/beam etcTBBSUPPORT/HOLD UPa wall etc that supports the weight of something 承重墙/梁等