我以前写过好几篇关于ocean dynamics的文章。如果我没有记错，我喜欢把它作为复数。但是，但是，我知道我的有些同事，喜欢把它作为单数。
我顺手Google一下。结果之一是：
https://www.dictionary.com/browse/dynamics
noun
(used with a singular verb) Physics . the branch of mechanics that deals with the motion and equilibrium of systems under the action of forces, usually from outside the system.
(used with a plural verb) the motivating or driving forces, physical or moral, in any field.
(used with a plural verb) the pattern or history of growth, change, and development in any field.
(used with a plural verb) variation and gradation in the volume of musical sound.
(used with a singular verb) psychodynamics.
所以，如果审稿人不是太挑剔，你可以任性选择。
如果你想提高科技英语写作能力，请跟我来...
http://blog.sciencenet.cn/blog-306792-1146577.html
