environment什么时候加s
environment在中文意思是n. [环境]环境;[环境]环境;生态环境的时候加s。
The FAA then recognised two types of operating environments.联邦航空局随后识别出了两种操作环境。
They do not ruin environments or use enormous amounts of energy.
environment在中文意思是n. [环境]环境;[环境]环境;生态环境的时候加s。
The FAA then recognised two types of operating environments.联邦航空局随后识别出了两种操作环境。
They do not ruin environments or use enormous amounts of energy.