It is able to control both the direction and the height of the dam.

　　它既可控制壩體的方向，又能控制壩體的高程。

　　A friendship system – users should be able to control who can send them messages.

　　一個好友系統-用戶能夠控制誰給他發送消息。

　　Therefore, the design focuses on being able to control the plant's interaction with the outside.

　　因此，設計著力于控制植物與外界的互動。

　　This was why he was able to control the ball's distance so precisely.

　　這就是為什么侯根可以如此精確地控制擊球的距離。

　　You may not be able to control the times, but you can compose your response.

　　你也許不能控制時勢，可是你能夠冷靜應對。

　　RDI was able to control vegetative growth, and promote reproductive growth.

　　抑制營養生長，促進生殖生長。