proper class

The biologist assigned the mushroom to the proper class.

这个生物学家将蘑菇分配到适当的班级里.

It added several needed improvements, such as class visibility, proper constructors and destructors, type hinting, and a class-reflection API.

它提供了一些必要的改进，例如类可见性、合适的构造函数和解构函数、输入提示和类反射（class-reflection）API。

Before class begins, one must come prepared, with neat attires and proper posture.

上课之前准备妥当, 衣冠端正,姿势亦端.

The strong vires certificate sin not proper from class or this of the public prosecutor control.

强力取证犯罪不宜由同级或本检察院检控.

Draw your own room, then describe it in proper preposition to the class.

画出你房间的示意图, 然后用适当的介词向同学们口头描述一下.