-----------------------------------

世界， せかい

1. the world, society, the universe 2. sphere, circle, world 3. world-renowned, world-famous 4. realm governed by one Buddha, space

世界

more...           more words...

-----------------------------------

を

1. indicates direct object of action 2. indicates subject of causative expression 3. indicates an area traversed 4. indicates time (period) over which action takes place 5. indicates point of departure or separation of action 6. indicates object of d...

表示动作的直接对象；表示经过的场所；表示离开或分开的点

more...           more words...

-----------------------------------

一周， いっしゅう

1. one round, one circuit, one revolution, one lap, one turn

tbd

more...           more words...

-----------------------------------

のだ， んだ

1. the expectation is that ..., the reason is that ..., the fact is that ..., the explanation is that ..., it is that ...

……的样子，预期是……，原因是……，事实是……，解释是……，情况是……

more...           more words...