prep. 在...之上, 迫近, 紧接着
So, if your baby seems to be in a stressful state while sleeping or is upset upon waking, there may be other factors at play.
四级 · CET-4 2025年12月 第2套
What can we assume about babies who appear upset upon waking?
四级 · CET-4 2025年12月 第2套
Whether you are taking a DNA test to build your extended DNA family tree, or want precise information on inborn (先天的) health conditions, it is important to understand how accurate genetic tests are, and what information we can rely upon.
四级 · CET-4 2025年12月 第3套
How accurate DNA tests are relies greatly upon the kind of test being taken, on the specific question you ask, and on how complex the genetics behind a trait (特征) is.
四级 · CET-4 2025年12月 第3套
The large majority of our traits and diseases also depend upon non-genetic factors, such as lifestyle, the environment, and many others.
四级 · CET-4 2025年12月 第3套