Mary瑶瑶
试验shì yàntrial; experiment; test:水力试验 hydraulic test发射试验 a firing trial飞行试验 an air trial; a flight test验收试验 acceptance test耐力试验 endurance test皮肤试验 skin test做化学试验 carry out an experiment in chemistry周教授正在做一项有趣的试验。 An interesting experiment is being tried by Prof. Zhou.
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