用作动词 (v.)
- She tried to dam up her feelings.
她尽力控制自己的感情。
- Controlling oneself takes a lot of effort.
要控制自己很不容易。
- He straightens up, combs his hair, and walks into the meeting.
他挺直身体，梳了梳头，然后走进会场。
- Straighten up slowly, then repeat the exercise ten times.
慢慢挺直身体，然后把这个动作重复十次。
