Ergonomical
人体功率学的, 工作环境改造学的
🗣️ 情景例句
always makes one a little nervous.
总是让人有些紧张。
How much is it by air mail?
航空信要多少钱？
Which TV programme shall we watch? I can't decide.
我们看哪个电视节目呢？我拿不定主意。