It is important that he should attend every day.
他每天都要出席，這很重要。
The senator was invited but was unable to attend.
參議員受到了邀請，但是未能出席。
She agreed to attend but jibbed at making a speech.
她同意出席但不願發言。
Please let us know if you cannot attend the meeting.
你若不能參加會議，請通知我們。