By himself
辅助 Assistant他独自地, 他独立地
🧩 词语组成解析
by
[baɪ]
prep. 在…旁边;表示方式;由于;经过;
adv. 经过;表示保留或保存时用;短暂拜访;
himself
[hɪm'sɛlf]
pron. （反身代词）他自己;（用以加强语气）他亲自，他本人;
🗣️ 情景例句
Just my friend Mike and a few kids from school.
只有我的朋友Mike和学校里的几个伙伴。
Don't worry. Everything will work out all right.
别担心了，一切都会好的。
Two factors weigh heavily against the effectiveness of scientific research in industry.
两个因素严重地影响工业里科学研究的效果：