weak existence

• 弱存在

weak existence的用法和样例：

例句

1. His devotion to his sick wife condemned him to a lonely existence.
   他的对他的病弱的妻子的照顾迫使他感到孤独地存在。
2. Because of isomerous data, the model in existence had shortcomings as adaptability and reusing.
   由于水稻生产管理中存在较多异构数据，现有模型难以克服时空适应性弱及代码重用等不足。