have trouble concentrating：遇到問題集中

feel more tired and have less energy感到更累了,有較少的能源 | have trouble concentrating遇到問題集中 | have a poor appetite有食欲不振

Difficulty concentrating or thinking clearly, or indecisiveness：在集中注意力或清晰思維遇到困難又长又大又粗又硬的免费A片、優(yōu)柔寡斷

? Not caring anymore about work, hobbies, friends, or ... | ? Difficulty concentrating or thinking clearly, or indecisiveness 在集中注意力或清晰思維遇到困難99久久影院亚洲精品图片、優(yōu)柔寡斷. | ? Feelings of hopelessness or p...

concentrating：準備

集中 preparation | 準備 concentrating | 集中 preparations

concentrating column：濃縮管柱

concentrated sulfuric acid 濃硫酸 | concentrating column 濃縮管柱 | concentrating effect 濃縮效應(yīng)

concentrating table：選礦臺

concentrating solar collector 太陽熱集中器聚光型集熱器 | concentrating table 選礦臺 | concentration 濃度

concentrating table：選礦搖床

concentrating mill 選礦廠 | concentrating table 選礦搖床 | concentration 濃度

concentrating table：選礦搖床, 淘汰盤

concentrating pond || 鹵水池, 濃縮鹽水的準備池(制取結(jié)晶鹽時) | concentrating table || 選礦搖床, 淘汰盤 | concentration area || 集中地區(qū)

concentrating machine：選礦機

concentrated wear 局部磨損 | concentrating machine 選礦機 | concentrating mill 選礦廠

concentrating mill：選礦廠

concentrating machine 選礦機 | concentrating mill 選礦廠 | concentrating table 選礦搖床

concentrating pan：濃縮鍋

concentrating machine 選礦機 | concentrating pan 濃縮鍋 | concentrating tower 濃縮塔