And yet that German Professor did not seem happy (и все же этот немецкий профессор не казался довольным; happy — счастливый, довольный). At first, when we began to laugh, the expression of his face was one of intense surprise (сначала, когда мы начали смеяться, выражение его лица было выражением сильного удивления = крайне удивленным), as if laughter were the very last thing he had expected to be greeted with (словно смех был последней вещью, которой он ожидал быть встреченным = словно он меньше всего ожидал, что его встретят смехом). We thought this very funny (мы посчитали это очень забавным): we said his earnest manner was half the humour (сказали /друг другу/, что его серьезное поведение — половина юмора). The slightest hint on his part that he knew how funny he was would have completely ruined it all (малейший намек с его стороны /на то/, что он знает, как он смешон, полностью испортил бы все). As we continued to laugh (по мере того, как мы продолжали смеяться), his surprise gave way to an air of annoyance and indignation (его удивление уступило место выражению досады и негодования; to give way to), and he scowled fiercely round upon us all (и он окинул яростным взглядом нас всех; to scowl — хмуриться; бросать сердитый взгляд) (except upon the two young men who, being behind him, he could not see) (кроме двоих юношей, сидевших позади него, которых он не мог видеть). That sent us into convulsions (от этого мы покатились со смеху; to send — посылать, отправлять; приводить в какое-либо состояние; convulsions — конвульсии, приступ; судорожный смех). We told each other that it would be the death of us, this thing (мы говорили друг другу, что эта песня уморит нас: «будет нашей смертью»). The words alone, we said, were enough to send us into fits (одних слов, сказали мы, достаточно, чтобы довести нас до припадка; fits — судороги, конвульсии), but added to his mock seriousness — oh, it was too much (а вместе с его притворной серьезностью — о, это было чересчур; to add to — добавлять, усиливать)!

scowled [skauld] annoyance ['nns]

I noticed, as the song progressed, that a good many other people seemed to have their eye fixed on the two young men, as well as myself. These other people also tittered when the young men tittered, and roared when the young men roared; and, as the two young men tittered and roared and exploded with laughter pretty continuously all through the song, it went exceedingly well.

And yet that German Professor did not seem happy. At first, when we began to laugh, the expression of his face was one of intense surprise, as if laughter were the very last thing he had expected to be greeted with. We thought this very funny: we said his earnest manner was half the humour. The slightest hint on his part that he knew how funny he was would have completely ruined it all. As we continued to laugh, his surprise gave way to an air of annoyance and indignation, and he scowled fiercely round upon us all (except upon the two young men who, being behind him, he could not see). That sent us into convulsions. We told each other that it would be the death of us, this thing. The words alone, we said, were enough to send us into fits, but added to his mock seriousness — oh, it was too much!