词汇	sand-filled shell
释义	sand-filled shell 填沙弹
随便看	introduce a new era introduce a newer caller-id chip i ntroduce introduce a bill introduce a Bill before Parliament introduce a bill into congress introduceable introduce absorption introduce a civilization introduce a credit system introduce a crop introduce acts introduce a custom introduce a detective introduce advanced technology introduce advantageously Introduce a fine variety introduce a football betting duty introduce a freshman to campus life introduce a guest introduce a guest into a parlour introduce a guest into a room introduce a key introduce a lady introduce a lecturer to an audience