It is embedded in specific cell-cell-contacts (tight junctions) of the specialized heart fibres.
这是植根于特定细胞细胞接触(紧密连接)的专门性纤维。
2
Almost all said that their cell phone was the way they stayed in touch with peers, one-third had used the cell phone to help a peer in need, and about 80% said the phone made them feel safer.