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- Respiration is difficult at great heights. 在很高的高原上呼吸很困难。
- You should not be absent from class. 你不应当旷课。
- How many students are absent today? 今天有多少学生缺席？
- Since when has he been absent from school? 她从什么时候起不来上学的？
- Many students were absent, notably the monitor. 许多学生缺席，特别是连班长也没来。
- She is never absent from work without good cause. 她决不无故缺勤。
- Respiration becomes difficult at great heights. 在很高的地方呼吸就变得困难了。
- I can't figure out why he is absent. 我弄不明白他为什么缺席。
- Love was totally absent from his childhood. 他童年时代没受到丝毫的疼爱。
- He gave a lame excuse for being absent. 他找了个站不住脚的理由来解释缺席的原因。
- He made up a story to explain why he was absent. 他编造了一个故事为他的缺席辩解。
- The air inhaled and exhaled in respiration. 呼吸的空气在呼吸中吸入和呼出的空气
- What percentage of children were absent? 缺席的学童占百分之几?
- Four students were absent at the class roll call. 班上点名时四个学生缺席。
- The number of students absent is five. 有五名学生缺席。
- An average of two students are absent each day. 每天平均有两个学生缺席。
- He was absent from the meeting for one reason or another. 他为某种理由而没有出席会议。
- absent respiration 呼吸音消失
- Please tell me the reason why (=for which) you were absent. 请告诉我你为什么缺席。
- He was using his accessory muscles of respiration. 他在用呼吸辅助肌进行呼吸。
