Covering an area of 175 acres (72 ha. ), the Palace is enclosed by walls over 35ft. (10. 4 m. ) high and surrounded by a moat 57 yd (52 m ) wide. Today this moat is still full of water.
故宫占地175亩（约72公顷），其四周有35英尺多高的城墙围绕，城墙外是57码（约52米）宽的护城河，河中直到今天都还满满是水。
Tourist: Yes. Yd like to reserve a room.
游客：是的，我想预订一个房间。
YD always uses simple examples to explain a profound theory.
于丹总是用简单的例子阐述深刻的道理。
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