Astronauts have two ------- in space - problems , One problem is ---------- - gravity, The other problem is  how to -------healty - eat, They need ----------- food - fresh , But it's ----------------to get  - impossible , fresh----------- in space - food ,

Missing word

列印
嵌入

排行榜

快閃記憶體卡是一個開放式範本。它不會為排行榜生成分數。

視覺風格

選項

切換範本

恢復自動保存: ?