Condoms are an effective method of birth control if used with care.如果使用得当，避孕套是很有效的避孕手段。Light colours provide an effective backdrop for pictures or a mirror.浅色是挂放图画或镜子很有效果的衬托。Women are sometimes seen to be less effective ...
MFM is an effective method to study magnetic domains and research magnetic materials.本文利用磁力显微镜研究纳米尺度磁畴的检测方法.Spacers make your child's inhaler easier to use and more effective.储药罐可以简化孩子用药,因此更为有效.Recent studies sugges...
The players are in defiant mood as they prepare for tomorrow'sgame.球员在备战明天的比赛时带着蔑视对手的情绪。Roosevelt was defiant in the face of the bad news.对这个坏消息，罗斯福毫不理会。They hurled defiant taunts at the riot police, who responded i...
Avoid stopping near or under buildings, trees, overpasses, and utility wires.不要把车停在建筑物下 、 大树旁 、 立交桥或者电线电缆下.Is that why they're constructing so many underpasses, overpasses and highways?那就是他们建这么多天桥 、 地下通道和公路的原因 吗 ?I ...