be present at
导读:be present at读音音标
be present at意思解释
双语例句用作介词(prep.)Viruses may be present in tapwater.病毒可以存在于自来水中。Aerosols are present throughout
be present at意思解释
双语例句用作介词(prep.)Viruses may be present in tapwater.病毒可以存在于自来水中。Aerosols are present throughout

be present at读音音标
be present at意思解释
双语例句
用作介词(prep.)Viruses may be present in tapwater.病毒可以存在于自来水中。Aerosols are present throughout the atmosphere.气溶胶存在于整个大气层。
