Some of these arguments are short of scientific foundations, some have not any convincingforce, which can not prove the creating method is a false concept at all.
这些论据有的缺乏科学依据，有的没有说服力，根本不能证明创作方法是伪概念。
2
When dealing with heavy objects, one must allow plenty of time and force to start, stop or change their movements, in order to make their weight look convincing.