Upon tut
计件, 按件
🧩 词语组成解析
upon
[ə'pɑn]
prep. 在…上面;当…时候;
interj. 啧啧(表示不赞成、责难)\\nn. 啧啧声音\\nvi. 发啧啧声
🗣️ 情景例句
Very few people last in this class for the full hour the very first time.
很少人能够第一次撑完一个小时的课。
She bursts into laughter.
她突然笑出声来。
Hello!
你好！