かねる， 兼ねる
1. to be unable to, to find difficult (unpleasant, awkward, painful) to do
2. to serve two or more functions or roles simultaneously, to contain (or combine) two or more features
3. to work in two or more jobs simultaneously (positions, etc.), to do ...
无法做到，觉得做这件事很困难(令人不快、尴尬、痛苦)；同时实现两种或多种功能或角色，包含(或融合)两种或更多的功能；同时从事两份或更多的工作；为了避免对他人造成影响而有所犹豫(不愿)去做某事；考虑未来(以及当下)