And finger joints hurt with the cold air and engine vibration.
而且由于骑摩托车时双手暴露在冷空气中，再加上发动机的振动，会令手指关节痛得厉害。
How many bones and joints are there in one finger?
一根手指上有多少骨头和关节？
Wood. Assembly. Multiple finger joints. Flexion test.
木材。组装。多榫接头连接。弯曲试验。
It was hard supporting myself with the power of my finger joints.
只用手指关节的力量去支撑自己是很困难的。
It was hard supporting myself with the power of my finger joints.
只用手指关节的力量去支撑自己是很困难的。
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