Tachography
血流速度描记法
🗣️ 情景例句
Different kinds of activities, such as commenmorative meetings, planting trees,
举行各种各样的活动，例如召开纪念大会，植树造林，
Hoist your sail when the wind is fair.
随机应变。
The ice is hard enough to skate on.
冰已经厚得可以划冰了。