ephemeral

adj.

短暂的，瞬息的；朝露；一年生；朝生暮死

1. Most newspapers are of ephemeral interest.
   多数报纸只能引起读者短暂的注意。
2. Slang words are often ephemeral.
   俚语往往只流行于一时。
3. Such novels came forward to enjoy ephemeral popularity only.
   这样的小说只是昙花一现的东西而已。

Transformation of ephemeral material
Mantle metasomatism by ephemeral carbonatite melts
Competition on a Divided and Ephemeral Resource
On Data-Centric Trust Establishment in Ephemeral Ad Hoc Networks
Cool-water Carbonate Production from Epizoic Bryozoans on Ephemeral Substrates
Cyclic colonization in predictably ephemeral habitats: a template for biological control in annual crop systems.
DEPTH-AREA-VOLUME AND HYDROPERIOD RELATIONSHIPS OF EPHEMERAL (VERNAL) FOREST POOLS IN SOUTHERN NEW ENGLAND
Design of a wireless sensor network platform for detecting rare, random, and ephemeral events
Invertebrates or Iron: Does Large-Scale Opencast Mining Impact Invertebrate Diversity In Ephemeral Wetlands?
Negative effects of habitat drying and prior exploitation on the detritus resource in an ephemeral aquatic habitat