Knocking on wood in some places it's called "touching wood," but knocking on wood for luck is an almost universal compulsion.
敲击木头在某些地方此举被称为“触摸木头”，但敲击木头以求好运可以说是遍及全球的一种强迫行为。
This creative walkway is made out natural wood and lightweight steel, providing for the future growth of plants and placed so it is barely touching the preserved canopy.
这个创意十足的走道由天然木材和轻钢组成，为了给植物生长留出足够的空间，它架设在几乎没有接触树冠的高度。
The wood is Moderate hardness, warm touching, and good for acoustic performance and temperature regulation, humidity controlling, etc;
木材的软硬适中，触感温暖，还有良好的声学性能和调温、调湿等功能；
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