The registration form allows new users to create accounts for themselves.
注册表单允许新用户创建自己的账户。
2
The line cannot be deleted as the data entry screen automatically displays all accounts for the selected form that are defined to hold historical rates.
这行不能删除的原因是：数据输入屏幕自动显示定义来持有历史汇率的已选表单的所有账户。
3
Dark matter is an invisible form of matter that accounts for most of the Universe's mass.