词汇习得是语言习得的一项重要内容，它是一个由浅及深的过程，有着丰富的内容，并受各种因素的影响。
Vocabulary acquisition is an important part of SLA, which is a step-by-step process, affected by many factors.
在行浅静脉及交通支静脉手术的同时行深静脉重建术是非常必要的。
Deep venous reconstruction should be considered when superficial venous or perforator venous reflux are operated upon.
小脑皮质及髓质的动脉分为皮质浅动脉、皮质中动脉、皮质深动脉、皮质髓质动脉及髓质动脉。
The cerebellar arteries in cortex and medulla are classified into superficial, middle, deep cortical arteries, corticomedullary arteries and medullary arteries.
应用推荐