Nitropenta
四硝季戊四醇
🗣️ 情景例句
Like setting up a regular weekly reading program.
譬如说开办一项每周一次的定期阅读计划。
I can see you have put a lot of time into it.
我相信你在制定这个计划上一定花了不少精力吧。
He no sooner recovers his equilibrium than the next porpoise comes along and hits him another crack.
海龟刚恢复平衡，第二只海豚又冲过来猛击一下。