interstice GRE

1.Blood production —The marrow, located within the medullary cavity of long bones and the interstices of cancellous bone, produces blood cells in a process called haematopoiesis.

造血-骨髓位于长骨髓腔和松质骨间隙内，骨髓通过造血作用产生血细胞。

2.There is a gleam of luminous gold, where the sinking western sun has found a first direct interstice in the clouds.

从西落太阳在云层里发现的接空隙处，透出缕金光。