You will have to go through the customs before going aborad .
你出国之前得经过海关检查。
If you have the opportunity to study aborad , seize it with both hands .
如果你有出国学习的机会，切勿错过。
The paper has given an introduction of the bismuth further processed product at home and aborad 's evolvement in medicine , pigment , superconductor , alloy solder and so on . The bismuth further processd product 's latency business values and environmental protection values were opened out .
