切勿将垃圾、碎屑或物品丢弃在走廊、楼梯、办公室、会议室和走道内。

No trash, debris or objects are to be left in hallways, stairways, offices, meeting rooms and walkways.

youdao

至于有外壳的食物，如鸡蛋，切勿连壳整只放进炉内烹调，以免爆裂。

As for shell food such as eggs, not even put into the furnace shell is provided throughout the cooking, so as not to burst.

youdao

门锁开启不灵活时，可以往钥匙孔内加入适量的铅笔芯粉末再往来转动几次即可。切勿随便滴注机油。

Please infuse with pencil powder (oil free) into key-hole then running few times when door open is not flexible.

youdao