His part in the affair was quite open and aboveboard.他参与这件事完全是正大光明的.I think everything ought to be aboveboard.我觉得什么事情都应当开诚布公.His business dealings were aboveboard.他的生意来往是光明正大的....
The field trip involved crossing a raging torrent.实地考察时要穿过一条水流湍急的河。Some students attended Prof. Jones on a field trip.一些学生随琼斯教授去野外郊游.Are you going to have a field trip on Tuesday?你准备星期二去野外旅行 吗 ?...
He programmed his computer to compare all the possible combinations.他给他的计算机编制了一套程序，以比较所有可能的组合。The music students are learning how to score tunes for various combinations.学音乐的学生把曲调改编为各种器乐组曲.Some antigens, or combinations ...
Particle accelerators and detectors are the key parts to the whole experiment.粒子加速器和探测器是整个实验的关键部门.The stabilized power supply unit for the detectors is mounted at the rear of the chassis.检测器的稳压电源安装在框架后面.The report advoca...