互译。 1. child laborer ____________ 3. make preparations for ____________ 5. take measures to do sth ____________ 7. medical treatment _____________ 9. take place _____________ 2. 不到,少于 ____________ 4. 国内外 ____________ 6. 取得进步 _____________ 8. 突然发生,爆发 ___________ 10. 跟……保持联系 ___________