Within a minute afterwards, he was, to all outward appearance, as unsubstantial as ever.
此后不到一分钟他的神色又跟过去完全一样满不在乎了.
英汉文学 - 双城记
In every joint of this chain joint is the most unsubstantial one.
在这个链条的各个环节中,我国最薄弱的是营销环节.
互联网
Especially the theory study and the system construction of tourism planning are unsubstantial.
其中,旅游规划的理论探索和体系建设尤其薄弱.
互联网
"as insubstantial as a dream"
"an insubstantial mirage on the horizon"