如果没有选择层，则会展开合成中所有图层的参数。

Also, if you have no layers selected, pressing these shortcuts will reveal the parameters for all the layers in the composition.

youdao

如果没有选择ST 751，则选中它，右侧窗格将填充环境选项。

If ST 751 is not already selected, select it, and the right pane populates with the options for the environment.

youdao

如果有选择，那就选择最好的；如果没有选择，那就努力做到最好。

If you have choices, choose the best. If you have no choice, do the best.

youdao