1·If an enterprise wants to stay competitive, it must engage in projects along all three portions of the curve.
如果企业想要保持其竞争地位，它必须沿着曲线的三个部分经营其项目。
2·Article80unless approved by the competent authority a leverage transaction merchant shall not engage in futures transaction business.
第80条杠杆交易商非经主管机关核准，不得经营期货交易业务。
3·The international submarine cable leased-circuit business operator shall not use its inland backhaul to engage in other business than the international submarine cable leased-circuit business.
国际海缆电路出租业务经营者不得利用内陆传输链路经营国际海缆电路出租业务以外之业务。
4·No entity or individual may, without being registered, engage in the export of any sensitive item or technology.
未经登记，任何单位或者个人不得经营敏感物项和技术的出口。
5·Article 25 Whoever intends to engage in port tallying shall obtain a permit in accordance with relevant regulations.
第二十五条经营港口理货业务，应当按照规定取得许可。