使用左右箭头键或滑鼠左键阅览资料。
Use the right and left arrow keys or left-mouse click to walk through the presentation.
可用左右箭头修改你的答案，按回车键确认答案。
Modify your answer and press the Enter key to check if you've got it right.
或者使用空格键或左右箭头移动高亮显示的选项，并按回车键。
Or you can use the space bar or the left and right arrow keys to move the highlight, and then press the return key.
镜头控制：通过左击按住鼠标左右移动人物，可以旋转模型镜头，或者单击窗口左上角的箭头按钮。
Camera controls: to rotate the camera around a character, click and hold the left mouse button while moving the mouse left and right, or click the arrow buttons in the top left of the window.
你用上下左右的箭头和空格键控制莉萨与班迪。
You control Lisa and Bandit by using the arrow keys: left, right, up and down, and with the space bar.
气腹空间呈现上宽下尖的树叶样，左右缘对称，上腹部可见中央的肝圆韧带（箭头1），右下腹壁可见局限性粘连改变（箭头2）。
The image showed leaf-like peritoneal cavity filling with air. Both ligamentum teres hepatic (arrow 1) and local abdominal adhesions (arrow 2) were seen clearly.
气腹空间呈现上宽下尖的树叶样，左右缘对称，上腹部可见中央的肝圆韧带（箭头1），右下腹壁可见局限性粘连改变（箭头2）。
The image showed leaf-like peritoneal cavity filling with air. Both ligamentum teres hepatic (arrow 1) and local abdominal adhesions (arrow 2) were seen clearly.
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