发生出现 meaning in English

occur

To the settlement of highway , if it could not be calculated and controlled strictly , the phenomenon of rip on road surface and deviation between bridge and its support will come up before long , which not only threaten the safety of transport but also cause the larger waste of manpower and material resources
高速公路沉降如果没有得到严格的计算与控制，建成后不久就会发生出现路面开裂、桥头错台等现象，这不但威胁到交通运输的安全，而且也造成了人力、物力上的浪费。