3. Our company opens at 8 in the morning / opens at 8am.4. Our company closes at 5:30 in the afternoon / 5:30 pm.这是我想到最接近的词。我不太确定公司的上下班是什么意思。5. What time do your c
De Zhiti foster the comprehensive development of environmental science with the basic theory, basic knowledge, basic skills and pharmacological knowledge base in scientific research institutions, schools, enterprises an