overlapping in duration; "concurrently with the conference an exhibition of things associated with Rutherford was held"; "going to school and holding a job at the same time" Từ đồng nghĩa: at the same time, at the same time,
overlapping in duration; "concurrently with the conference an exhibition of things associated with Rutherford was held"; "going to school and holding a job at the same time" Từ đồng nghĩa: at the same time, at the same time,