-----------------------------------
しっかり， 確り， 聢り
1. tightly (holding on), firmly, securely
2. strongly (built), solidly, sturdily, steadily
3. properly, well, sufficiently, hard (working, etc.), fully, completely
4. reliably, dependably, levelheadedly, shrewdly, wisely, cleverly
适当地、良好地、足够地、努力地(工作等)；充分地、彻底地；紧紧地（抓住），牢固地，安全地；坚固地，牢固地，稳固地，稳定地；可靠地、值得信赖地、头脑冷静地、精明地、明智地、巧妙地
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
に
1. at (place, time), in, on, during
2. to (direction, state), toward, into
3. for (purpose)
4. because of (reason), for, with
5. by, from
6. as (i.e. in the role of)
7. per, in, for, a (e.g. "once a month")
8. and, in addition to
9. if, although
tbd
