设计通常要比体系结构松散得多，因为它允许以更多的方式遵守组件的外部属性。
Design is usually much more relaxed than architecture, because it allows more ways to adhere to the external properties of the component.
为此，4gl通常提供图形编辑器来支持以可视方式设计GUI，并提供专有脚本语言和API来将用户驱动的事件绑定到特定业务逻辑。
To facilitate this, 4gls typically provide graphical editors to visually design the GUI and proprietary scripting languages and APIs to tie user-driven events to specific business logic.
序列图以可视方式为系统中逻辑的流程建模，能够让您记载和验证逻辑，这通常用于分析和设计目的。
Sequence diagrams model the flow of logic within your system in a visual manner, enabling you to both document and validate your logic, and are commonly used for both analysis and design purposes.
以镜像方式对称的分子通常会具有不同的性质，于是研究人员利用这种“手性（chirality，译注：指分子的左/右手螺旋性质）”来设计新药物。
Molecules often come in mirror images that can have different properties, and researchers take advantage of this "chirality" to design new drugs.
以镜像方式对称的分子通常会具有不同的性质，于是研究人员利用这种“手性（chirality，译注：指分子的左/右手螺旋性质）”来设计新药物。
Molecules often come in mirror images that can have different properties, and researchers take advantage of this "chirality" to design new drugs.
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