1. Introduction

2. Sample selection

3. Observations and data reduction

4. Line identification

5. Results
5.1. Detected lines
5.2. Line parameters and spectral plots
5.3. Individual species

6. Discussions
6.1. Dense molecular cloud cores in EGOs
6.2. Outflows in the EGOs
6.3. Kinematic distance
6.4. The line luminosity correlations
6.5. Line width correlations
6.6. Line width – luminosity relations

7. Summary