[计] two-way simultaneous interaction, TWS

shuāng miàn tóng shí jiāo hù zuò yòng ㄕㄨㄤ ㄇㄧㄢˋ ㄊㄨㄥˊ ㄕˊ ㄐㄧㄠ ㄏㄨˋ ㄗㄨㄛˋ ㄩㄥˋ