signal
/ˈsɪgnəl/
notably out of the ordinary
中文释义:显著的;重大的
The discovery of water on Mars was a signal achievement in space exploration.
在火星上发现水是太空探索中的一项重大成就。
Her signal contribution to the project earned her a promotion.
她对项目的显著贡献为她赢得了晋升。
/ˈsɪgnəl/
notably out of the ordinary
中文释义:显著的;重大的
The discovery of water on Mars was a signal achievement in space exploration.
在火星上发现水是太空探索中的一项重大成就。
Her signal contribution to the project earned her a promotion.
她对项目的显著贡献为她赢得了晋升。