斗破苍穹萧炎x药尘纯肉:for oneself ,by oneself ,of oneself的区别

for oneself ,by oneself ,of oneself的区别 What's the difference between" by oneself "and "for oneself" for oneself是否是”独自，一个人”的意思？如果是，它和by oneself如何区分？ see for oneself啥意思 leave oneself open for 是什么意思 followed by Challenges for Europe by-pass reading for codon People have substituted plastic products for wooden ones, for the production _____ is lower this is to a degree cancelled by the ones who are fired up 意思？ this is to a degree cancelled out by the ones who are fired up 意思？