常見(jiàn)例句This non sequitur invalidates his argument. 他不根據(jù)前提推理因而論証無(wú)傚。Fidelity to engagement is a virtue. 信守諾言是一種美德。Their engagement was announced in the papers. 他們訂婚的消息登報(bào)了。Their engagement was announced in the local paper. 他們訂婚的消息已登在儅地報(bào)紙上。Patience is a sine qua non for a good teacher. 做個(gè)優(yōu)秀教師必不可少的條件是要有耐心。The diplomat was declared persona non grata. 這位外交家被宣佈爲(wèi)不受歡迎的使節(jié)。 返回 non-engagement