At least one player must be capable of playing mid-field.
至少有1个球员可以打中场位置。
2
By the mid-1980s, electrifying word swept the field of DNA and RNA research.
上世纪80年代中期，令人振奋的消息横扫dna和rna研究领域。
3
As magma rises under the mid-ocean ridge, ferromagnetic minerals in the magma become magnetized in the direction of the magma become magnetized in the direction of the geomagnetic field.