在现实中，尽管盖茨的头发总是乱糟糟的，又长着张娃娃脸，不修边幅，他可是个老练的生意人，每走一步都成竹在胸。
In reality, Gates is a smooth operator who, despite his uncombed hair, baby face and disheveled appearance, knew exactly what he was doing every step of the way.
目的对胸外伤后肺不张发生的原因进行探讨。
Objective To probe into the pathogenesis of atelectasis after chest trauma.
把一张透明纸放在所需省道的位置上，这张纸要足以覆盖胸点和省道。 收藏。
Place a small sheet of transparent paper large enough to cover the BP and dart over the required dart position.
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