luminous sign的用法和样例:
例句
- These reactions are not luminous.
这些反应是不发光的。
- Sun is their luminous heated hot gas planet.
太阳是自己发光发热的炽热的气体星球。
- The sign of the restaurant is very big.
这家饭店的标志非常大。
- Many of those who abstain consider smoking a sign of weakness or intemperance.
许多戒烟者将吸烟视作软弱或放纵的标志。