J
148.join in 参加，加入
Students join in the school activities actively. 学生们积极参加学校活动。
He took off the coat and joined in the work. 他脱掉上衣加入到工作中去。
149.just now 眼下，目前，刚才，不久前 He left just now. 他刚离开。
He is learning painting from a well-known artist just now. 他现在正跟一个著名的画学家绘画。
