5.to good effect
(successfully)效果良好
The museum is using advertising to good effect.这座博物馆的广告效果良好。
6.in effect
(practically speaking)实质上；实际上
That deal would create, in effect, the world's biggest airline.事实上, 这一交易将催生全球最大的航空公司。
(operating)(法律、规定等)正在实行, 有效
A severe weather warning is still in effect for parts of Britain.英国部分地区的恶劣天气预警还没有解除。
7.to no effect
(unsuccessfully)毫无效果
Mr Charles complained, to no effect.查尔斯先生投诉无果。