5. What size of apartment did you have in mind?
你要多大的公寓?
还能这样说：
How large an apartment do you want?
What size apartment do you need?
应用解析：
cut sb. down to size 使某人有自知之明;使某人自量;
for size 试尺寸;看是否合适;
of a size 大小一样的，尺码相同的;
try sth. for size 试做某事;试试某物
6. We need an apartment with two bedrooms.
我们要一个有两间卧室的公寓。
还能这样说：
The apartment we need should have two bedrooms.
We need a two-bedroom apartment.
应用解析：
in need 在危难中，在危急中;
in case time of need 在紧急的时候;
have need to do sth. 必须做某事;
if need be 如果必要的话
7. Could I take a look at it?
我能先看看吗?
还能这样说：
Can I have a look?
Can you show it to me?
谚语：
Don't judge a man by his looks.
别以貌取人。
8. This is the living room dining room combination.
这是客厅兼餐厅。
还能这样说：
This living room can also be used as a dining room.
You can use this living room as a dining room.
应用解析：
combine theory with practice 使理论与实践相结合;
a combined operation 多兵种联合作战;
a combined bridge 铁路、公路两用桥