She knew that her efforts to feign cheerfulness weren't convincing.她明白自己强作欢颜是瞒不了谁的.Cheerfulness doesn't always imply happiness.快活并不总是意味着幸福.Skateboarding gives one the extreme sense of cheerfulness and success.滑...
Effervesce: To emIt'small bubbles of gas, as a carbonated or fermenting liquid.“冒泡: 冒出小气泡, 如碳化了的或正在发酵的液体.”.Objective : To prepare Qingkailing effervesce granules.目的: 研制清开灵泡腾颗粒.Made by rubber, effervesce layer to red...