big-vein

基本解释

Thirteen veins line in the mesophyll, alternating bigger vein and smaller one.
平行叶脉13条，大小相间排列于叶肉中。
The tunica adventitia of the big veins was very thick and was comprised of abundant smooth muscular bundles, collagen and elastic fibers.
大静脉的内膜与中膜均较薄，中膜由数层平滑肌构成，外膜则很厚，由大量平滑肌束及胶原纤维、弹性纤维构成。
Our firm is likely to reap a big profit this year.
今年我们公司很可能获得巨额利润。
That little bop made away with the big pie.
小男孩把大馅饼吃光了。
The big dog leapt up at the little girl.
那条大狗跳起来朝小女孩扑去。