查询词典 have trouble doing sth.

be tired：累的

20. 想要做某事 would like to do sth\\want to do sth | 21. 累的 be tired | 22. 坐下 sit down

be to blame for：(某人)应该为某事负责

blame sb. for sth. 因为......责备某人 | be to blame for (某人)应该为某事负责 | borrow sth.from sb.向某人借某物

sb be to blame for sth：某人为了某事被责备

attach sth to 把...附加...上 | at a discount of 打折 | sb be to blame for sth 某人为了某事被责备

be to do sth.: must/ought to do sth：应当做某事

He burst into the house, and rushed across the living room into his bedroom. 他突然闯进屋子,冲过起居室... | 9. be to do sth.: must/ought to do sth. 应当做某事 | Are we to meet again tonight? 我们今晚还要...

be content to do sth./ with sth：对...满意

take one's place代替 | be content to do sth./ with sth. 对...满意 | walk with Tiny Tim upon his shoulder边走边背着TIM

be welcome to do sth./to sth：欢迎/任意做某事

32.be welcomed by 受到.......欢迎 | 33. be welcome to do sth./to sth. 欢迎/任意做某事...... | 34.the ancient holiday 古老的节日

be welcome to do sth./to sth：可随意做某事,可随意取用某物

You are a welcome guest.你是受欢迎的客人. | be welcome to do sth/to sth 可随意做某事,可随意取用某物 | You are welcome to borrow my bike.你可以随意借用我的自行车.

be dying to do sth./for sth：非常想做某事

now...now... 忽而...忽而... | be dying to do sth./for sth. 非常想做某事 | get one's hands on 抓到,得到

sb be ~ to do sth：某人对某事感兴趣

14.试着做某事:try to do sth. | 15.某人对某事感兴趣:sb be ~ to do sth. | 16.和某人开玩笑:make fun of sb.

或be torn open是指"撕开：tear sth. open

eg.The cloth tears easily.这块布料容易扯破. | 2)tear sth. open或be torn open是指"撕开???". | 3)tear也作名词用,(常用复数)泪珠,眼泪.

longitudinal induced voltage：纵向感应电压

longitudinal impedance 纵向阻抗 | longitudinal induced voltage 纵向感应电压 | longitudinal magnetic field 纵向磁场

refrigerant circuit：冷凍迴路

冷冻剂 refrigerant | 冷冻回路 refrigerant circuit0 | 冷冻活性碳床 refrigerated charcoal bed