1) You don't necessarily have to attend.
你不一定要出席。
2) Be sure to attend the meeting.
一定要出席会议。
3) He insists that I should be present .
他一定要我出席。
4) You don't necessarily have to go.
你不一定要去。
5) He insists that I (shall/should) be present.
他定要我出席。
6) I guarantee to be present.
我保证一定出席。
补充资料：坚持
坚决保持、维护或进行：～原则ㄧ～己见ㄧ～不懈 ㄧ～工作。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条