kept up

• Do you still keep up your spanish ?
  你仍在学西班牙语吗？
• Still, i thought it best to keep up pressure .
  然而，我仍然认为最好继续保持压力。
• Somehow i just don't keep up with things .
  我反正就是弄得成了这么个跟不上潮流的人。
• Never fall behind, keep up !
  不要落后，要跟上！
• You have to keep up appearances .
  你得撑面子啊。
• You are all doing a splendid job; keep up the good work !
  你们干得都很出色，要坚持下去！
• That's true. and he tries to keep up with the joneses .
  确实如此。况且他还想跟邻居比阔气。
• You're so low, i dare say i shall keep up with you .
  你这样无精打彩，我敢说我要赶得上你了。
• He drank more than usual to keep up the glow .
  他的酒比往常喝得更多了，他想以此来保持激情。
• The farmers used manure to keep up the fertility of their land .
  农夫们用粪保持其土质的肥沃。